Merge remote-tracking branch 'upstream/master' into auto-build-example

196 files changed, 5243 insertions, 1022 deletions

diff --git a/Makefile b/Makefile
index d93ce33763..9be3e5784c 100644
--- a/Makefile
+++ b/Makefile
@@ -4376,7 +4376,7 @@ LIBINTEROP_SERVER_MAIN_SRC = \
     $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc \
     $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc \
     $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc \
-    test/cpp/interop/server_main.cc \
+    test/cpp/interop/interop_server.cc \
 
 PUBLIC_HEADERS_CXX += \
 
@@ -4422,7 +4422,7 @@ ifneq ($(NO_DEPS),true)
 -include $(LIBINTEROP_SERVER_MAIN_OBJS:.o=.dep)
 endif
 endif
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/server_main.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/interop_server.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
 
 
 LIBQPS_SRC = \
@@ -6389,6 +6389,7 @@ LIBEND2END_TESTS_SRC = \
     test/core/end2end/tests/simple_delayed_request.c \
     test/core/end2end/tests/simple_metadata.c \
     test/core/end2end/tests/simple_request.c \
+    test/core/end2end/tests/streaming_error_response.c \
     test/core/end2end/tests/trailing_metadata.c \
 
 PUBLIC_HEADERS_C += \
@@ -6465,6 +6466,7 @@ LIBEND2END_NOSEC_TESTS_SRC = \
     test/core/end2end/tests/simple_delayed_request.c \
     test/core/end2end/tests/simple_metadata.c \
     test/core/end2end/tests/simple_request.c \
+    test/core/end2end/tests/streaming_error_response.c \
     test/core/end2end/tests/trailing_metadata.c \
 
 PUBLIC_HEADERS_C += \
@@ -14937,8 +14939,8 @@ test/cpp/end2end/test_service_impl.cc: $(OPENSSL_DEP)
 test/cpp/interop/client.cc: $(OPENSSL_DEP)
 test/cpp/interop/client_helper.cc: $(OPENSSL_DEP)
 test/cpp/interop/interop_client.cc: $(OPENSSL_DEP)
+test/cpp/interop/interop_server.cc: $(OPENSSL_DEP)
 test/cpp/interop/server_helper.cc: $(OPENSSL_DEP)
-test/cpp/interop/server_main.cc: $(OPENSSL_DEP)
 test/cpp/qps/client_async.cc: $(OPENSSL_DEP)
 test/cpp/qps/client_sync.cc: $(OPENSSL_DEP)
 test/cpp/qps/driver.cc: $(OPENSSL_DEP)
diff --git a/PYTHON-MANIFEST.in b/PYTHON-MANIFEST.in
index 534f4c1251..3ebba6ec3f 100644
--- a/PYTHON-MANIFEST.in
+++ b/PYTHON-MANIFEST.in
@@ -1,6 +1,7 @@
 recursive-include src/python/grpcio/grpc *.c *.h *.py *.pyx *.pxd *.pxi *.python *.pem
 recursive-exclude src/python/grpcio/grpc/_cython *.so *.pyd
 graft src/python/grpcio/tests
+graft src/python/grpcio/grpcio.egg-info
 graft src/core
 graft src/boringssl
 graft include/grpc
diff --git a/Rakefile b/Rakefile
index f208a24fd3..f44946fe93 100755
--- a/Rakefile
+++ b/Rakefile
@@ -77,7 +77,7 @@ task 'dlls' do
   grpc_config = ENV['GRPC_CONFIG'] || 'opt'
   verbose = ENV['V'] || '0'
 
-  env = 'CPPFLAGS="-D_WIN32_WINNT=0x600 -DUNICODE -D_UNICODE" '
+  env = 'CPPFLAGS="-D_WIN32_WINNT=0x600 -DUNICODE -D_UNICODE -Wno-unused-variable -Wno-unused-result" '
   env += 'LDFLAGS=-static '
   env += 'SYSTEM=MINGW32 '
   env += 'EMBED_ZLIB=true '
diff --git a/build.yaml b/build.yaml
index d41f419594..1f06e20cf9 100644
--- a/build.yaml
+++ b/build.yaml
@@ -1117,7 +1117,7 @@ libs:
   - src/proto/grpc/testing/empty.proto
   - src/proto/grpc/testing/messages.proto
   - src/proto/grpc/testing/test.proto
-  - test/cpp/interop/server_main.cc
+  - test/cpp/interop/interop_server.cc
   deps:
   - interop_server_helper
   - grpc++_test_util
diff --git a/doc/PROTOCOL-HTTP2.md b/doc/PROTOCOL-HTTP2.md
index 357ea72571..31d694b803 100644
--- a/doc/PROTOCOL-HTTP2.md
+++ b/doc/PROTOCOL-HTTP2.md
@@ -38,7 +38,7 @@ Request-Headers are delivered as HTTP2 headers in HEADERS + CONTINUATION frames.
 * **Nanosecond** → "n"
 * **Content-Type** → "content-type" "application/grpc" [("+proto" / "+json" / {_custom_})]
 * **Content-Coding** → "identity" / "gzip" / "deflate" / "snappy" / {_custom_}
-* **Message-Encoding** → "grpc-encoding" Content-Coding
+* <a name="message-encoding"></a>**Message-Encoding** → "grpc-encoding" Content-Coding
 * **Message-Accept-Encoding** → "grpc-accept-encoding" Content-Coding \*("," Content-Coding)
 * **User-Agent** → "user-agent" {_structured user-agent string_}
 * **Message-Type** → "grpc-message-type" {_type name for message schema_}
@@ -83,7 +83,7 @@ binary values' lengths being post-Base64.
 The repeated sequence of **Length-Prefixed-Message** items is delivered in DATA frames
 
 * **Length-Prefixed-Message** → Compressed-Flag Message-Length Message
-* **Compressed-Flag** → 0 / 1   # encoded as 1 byte unsigned integer
+* <a name="compressed-flag"></a>**Compressed-Flag** → 0 / 1   # encoded as 1 byte unsigned integer
 * **Message-Length** → {_length of Message_}  # encoded as 4 byte unsigned integer
 * **Message** → \*{binary octet}
 
diff --git a/doc/compression.md b/doc/compression.md
new file mode 100644
index 0000000000..de245d90fe
--- /dev/null
+++ b/doc/compression.md
@@ -0,0 +1,118 @@
+## **gRPC Compression**
+
+The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD",
+"SHOULD NOT", "RECOMMENDED",  "MAY", and "OPTIONAL" in this document are to be
+interpreted as described in [RFC 2119](http://www.ietf.org/rfc/rfc2119.txt).
+
+### Intent
+
+Compression is used to reduce the amount of bandwidth used between peers. The
+compression supported by gRPC acts _at the individual message level_, taking
+_message_ [as defined in the wire format
+document](PROTOCOL-HTTP2.md).
+
+The implementation supports different compression algorithms. A _default
+compression level_, to be used in the absence of message-specific settings, MAY
+be specified for during channel creation.
+
+The ability to control compression settings per call and to enable/disable
+compression on a per message basis MAY be used to prevent CRIME/BEAST attacks.
+It also allows for asymmetric compression communication, whereby a response MAY
+be compressed differently, if at all.
+
+### Specification
+
+Compression MAY be configured by the Client Application by calling the
+appropriate API method. There are two scenarios where compression MAY be
+configured:
+
++  At channel creation time, which sets the channel default compression and
+   therefore the compression that SHALL be used in the absence of per-RPC
+   compression configuration.
++  At response time, via:
+   +  For unary RPCs, the {Client,Server}Context instance. 
+   +  For streaming RPCs, the {Client,Server}Writer instance. In this case,
+      configuration is reduced to disabling compression altogether.
+
+### Compression Method Asymmetry Between Peers
+
+A gRPC peer MAY choose to respond using a different compression method to that
+of the request, including not performing any compression, regardless of channel
+and RPC settings (for example, if compression would result in small or negative
+gains).
+
+When a message from a client compressed with an unsupported algorithm is
+processed by a server, it WILL result in an `UNIMPLEMENTED` error status on the
+server. The server will then include in its response a `grpc-accept-encoding`
+header specifying the algorithms it does accept. If an `UNIMPLEMENTED` error
+status is returned from the server despite having used one of the algorithms
+from the `grpc-accept-encoding` header, the cause MUST NOT be related to
+compression. Data sent from a server compressed with an algorithm not supported
+by the client WILL result in an `INTERNAL` error status on the client side.
+
+Note that a peer MAY choose to not disclose all the encodings it supports.
+However, if it receives a message compressed in an undisclosed but supported
+encoding, it MUST include said encoding in the response's `grpc-accept-encoding
+h`eader.
+
+For every message a server is requested to compress using an algorithm it knows
+the client doesn't support (as indicated by the last `grpc-accept-encoding`
+header received from the client), it SHALL send the message uncompressed. 
+
+### Specific Disabling of Compression
+
+If the user (through the previously described mechanisms) requests to disable
+compression the next message MUST be sent uncompressed. This is instrumental in
+preventing BEAST/CRIME attacks. This applies to both the the unary and streaming
+cases.
+
+### Compression Levels and Algorithms
+
+The set of supported algorithm is implementation dependent. In order to simplify
+the public API and to operate seamlessly across implementations (both in terms
+of languages but also different version of the same one), we introduce the idea
+of _compression levels_ (such as "low", "medium", "high").
+
+Levels map to concrete algorithms and/or their settings (such as "low" mapping
+to "gzip -3" and "high" mapping to "gzip -9") automatically depending on what a
+peer is known to support. A server is always aware of what its clients support,
+as clients disclose it in their Message-Accept-Encoding header as part of their
+initial call. A client doesn't a priori (presently) know which algorithms a
+server supports. This issue can be addressed with an initial negotiation of
+capabilities or an automatic retry mechanism. These features will be implemented
+in the future. Currently however, compression levels are only supported at the
+server side, which is aware of the client's capabilities through the incoming
+Message-Accept-Encoding header.
+
+### Propagation to child RPCs
+
+The inheritance of the compression configuration by child RPCs is left up to the
+implementation. Note that in the absence of changes to the parent channel, its
+configuration will be used.
+
+### Test cases
+
+1. When a compression level is not specified for either the channel or the
+message, the default channel level _none_ is considered: data MUST NOT be
+compressed.
+1. When per-RPC compression configuration isn't present for a message, the
+channel compression configuration MUST be used.
+1. When a compression method (including no compression) is specified for an
+outgoing message, the message MUST be compressed accordingly.
+1. A message compressed by a client in a way not supported by its server MUST
+fail with status `UNIMPLEMENTED`, its associated description indicating the
+unsupported condition as well as the supported ones. The returned
+`grpc-accept-encoding` header MUST NOT contain the compression method
+(encoding) used.
+1. A message compressed by a server in a way not supported by its client MUST
+fail with status `INTERNAL`, its associated description indicating the
+unsupported condition as well as the supported ones. The returned
+`grpc-accept-encoding` header MUST NOT contain the compression method
+(encoding) used.
+1. An ill-constructed message with its [Compressed-Flag
+bit](PROTOCOL-HTTP2.md#compressed-flag)
+set but lacking a
+"[grpc-encoding](PROTOCOL-HTTP2.md#message-encoding)"
+entry different from _identity_ in its metadata MUST fail with `INTERNAL`
+status, its associated description indicating the invalid Compressed-Flag
+condition.
diff --git a/doc/interop-test-descriptions.md b/doc/interop-test-descriptions.md
index 7fd21c7022..a4f9abecfa 100644
--- a/doc/interop-test-descriptions.md
+++ b/doc/interop-test-descriptions.md
@@ -68,14 +68,12 @@ control (even if compression is enabled on the channel).
 
 Server features:
 * [UnaryCall][]
-* [Compressable Payload][]
 
 Procedure:
  1. Client calls UnaryCall with:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_size: 314159
       payload:{
         body: 271828 bytes of zeros
@@ -85,56 +83,106 @@ Procedure:
 
 Client asserts:
 * call was successful
-* response payload type is COMPRESSABLE
 * response payload body is 314159 bytes in size
 * clients are free to assert that the response payload body contents are zero
   and comparing the entire response message against a golden response
 
-### large_compressed_unary
-
-This test verifies compressed unary calls succeed in sending messages. It
-sends one unary request for every payload type, with and without requesting a
-compressed response from the server.
-
-In all scenarios, whether compression was actually performed is determined by
-the compression bit in the response's message flags.
+### client_compressed_unary
 
+This test verifies the client can compress unary messages by sending two unary
+calls, for compressed and uncompressed payloads. It also sends an initial
+probing request to verify whether the server supports the [CompressedRequest][]
+feature by checking if the probing call fails with an `INVALID_ARGUMENT` status.
 
 Server features:
 * [UnaryCall][]
-* [Compressable Payload][]
-* [Uncompressable Payload][]
+* [CompressedRequest][]
 
 Procedure:
- 1. Client calls UnaryCall with:
+ 1. Client calls UnaryCall with the feature probe, an *uncompressed* message:
+    ```
+    {
+      expect_compressed:{
+        value: true
+      }
+      response_size: 314159
+      payload:{
+        body: 271828 bytes of zeros
+      }
+    }
+    ```
+
+ 1. Client calls UnaryCall with the *compressed* message:
+
+    ```
+    {
+      expect_compressed:{
+        value: true
+      }
+      response_size: 314159
+      payload:{
+        body: 271828 bytes of zeros
+      }
+    }
+    ```
+
+ 1. Client calls UnaryCall with the *uncompressed* message:
 
     ```
     {
-      request_compressed_response: bool
-      response_type: COMPRESSABLE
+      expect_compressed:{
+        value: false
+      }
       response_size: 314159
       payload:{
         body: 271828 bytes of zeros
       }
     }
     ```
+
     Client asserts:
-    * call was successful
-    * response payload type is COMPRESSABLE
-    * if `request_compressed_response` is false, the response MUST NOT have the
-      compressed message flag set.
-    * if `request_compressed_response` is true, the response MUST have the
-      compressed message flag set.
-    * response payload body is 314159 bytes in size
-    * clients are free to assert that the response payload body contents are
-      zero and comparing the entire response message against a golden response
+    * First call failed with `INVALID_ARGUMENT` status.
+    * Subsequent calls were successful.
+    * Response payload body is 314159 bytes in size.
+    * Clients are free to assert that the response payload body contents are
+      zeros and comparing the entire response message against a golden response.
 
 
- 2. Client calls UnaryCall with:
+### server_compressed_unary
+
+This test verifies the server can compress unary messages. It sends two unary
+requests, expecting the server's response to be compressed or not according to
+the `response_compressed` boolean.
+
+Whether compression was actually performed is determined by the compression bit
+in the response's message flags. *Note that some languages may not have access
+to the message flags*.
+
+
+Server features:
+* [UnaryCall][]
+* [CompressedResponse][]
+
+Procedure:
+ 1. Client calls UnaryCall with `SimpleRequest`:
+
+    ```
+    {
+      response_compressed:{
+        value: true
+      }
+      response_size: 314159
+      payload:{
+        body: 271828 bytes of zeros
+      }
+    }
+    ```
+
     ```
     {
-      request_compressed_response: bool
-      response_type: UNCOMPRESSABLE
+      response_compressed:{
+        value: false
+      }
       response_size: 314159
       payload:{
         body: 271828 bytes of zeros
@@ -143,11 +191,13 @@ Procedure:
     ```
     Client asserts:
     * call was successful
-    * response payload type is UNCOMPRESSABLE
-    * the response MAY have the compressed message flag set. Some
-      implementations will choose to compress the payload even when the output
-      size if larger than the input.
-    * response payload body is 314159 bytes in size
+    * when `response_compressed` is true, the response MUST have the
+      compressed message flag set.
+    * when `response_compressed` is false, the response MUST NOT have
+      the compressed message flag set.
+    * response payload body is 314159 bytes in size in both cases.
+    * clients are free to assert that the response payload body contents are
+      zero and comparing the entire response message against a golden response
 
 
 ### client_streaming
@@ -156,7 +206,6 @@ This test verifies that client-only streaming succeeds.
 
 Server features:
 * [StreamingInputCall][]
-* [Compressable Payload][]
 
 Procedure:
  1. Client calls StreamingInputCall
@@ -206,25 +255,81 @@ Client asserts:
 * call was successful
 * response aggregated_payload_size is 74922
 
+
+### client_compressed_streaming
+
+This test verifies the client can compress requests on per-message basis by
+performing a two-request streaming call. It also sends an initial probing
+request to verify whether the server supports the [CompressedRequest][] feature
+by checking if the probing call fails with an `INVALID_ARGUMENT` status.
+
+Procedure:
+ 1. Client calls `StreamingInputCall` and sends the following feature-probing
+    *uncompressed* `StreamingInputCallRequest` message
+
+    ```
+    {
+      expect_compressed:{
+        value: true
+      }
+      payload:{
+        body: 27182 bytes of zeros
+      }
+    }
+    ```
+    If the call fails with `INVALID_ARGUMENT`, the test fails. Otherwise, we
+    continue.
+
+ 1. Client calls `StreamingInputCall` again, sending the *compressed* message
+
+    ```
+    {
+      expect_compressed:{
+        value: true
+      }
+      payload:{
+        body: 27182 bytes of zeros
+      }
+    }
+    ```
+
+ 1. And finally, the *uncompressed* message
+    ```
+    {
+      expect_compressed:{
+        value: false
+      }
+      payload:{
+        body: 45904 bytes of zeros
+      }
+    }
+    ```
+
+ 1. Client half-closes
+
+Client asserts:
+* First call fails with `INVALID_ARGUMENT`.
+* Next calls succeeds.
+* Response aggregated payload size is 73086.
+
+
 ### server_streaming
 
 This test verifies that server-only streaming succeeds.
 
 Server features:
 * [StreamingOutputCall][]
-* [Compressable Payload][]
 
 Procedure:
- 1. Client calls StreamingOutputCall with:
+ 1. Client calls StreamingOutputCall with `StreamingOutputCallRequest`:
 
     ```
     {
-      response_type:COMPRESSABLE
       response_parameters:{
         size: 31415
       }
       response_parameters:{
-        size: 59
+        size: 9
       }
       response_parameters:{
         size: 2653
@@ -238,103 +343,64 @@ Procedure:
 Client asserts:
 * call was successful
 * exactly four responses
-* response payloads are COMPRESSABLE
 * response payload bodies are sized (in order): 31415, 9, 2653, 58979
 * clients are free to assert that the response payload body contents are zero
   and comparing the entire response messages against golden responses
 
 ### server_compressed_streaming
 
-This test verifies that server-only compressed streaming succeeds.
+This test verifies that the server can compress streaming messages and disable
+compression on individual messages.
 
 Server features:
 * [StreamingOutputCall][]
-* [Compressable Payload][]
-* [Uncompressable Payload][]
+* [CompressedResponse][]
 
 
 Procedure:
- 1. Client calls StreamingOutputCall with:
+ 1. Client calls StreamingOutputCall with `StreamingOutputCallRequest`:
 
     ```
     {
-      request_compressed_response: bool
-      response_type:COMPRESSABLE
       response_parameters:{
+        compressed: {
+          value: true
+        }
         size: 31415
       }
       response_parameters:{
-        size: 59
-      }
-      response_parameters:{
-        size: 2653
-      }
-      response_parameters:{
-        size: 58979
+        compressed: {
+          value: false
+        }
+        size: 92653
       }
     }
     ```
 
     Client asserts:
     * call was successful
-    * exactly four responses
-    * response payloads are COMPRESSABLE
-    * if `request_compressed_response` is false, the response's messages MUST
+    * exactly two responses
+    * when `response_compressed` is false, the response's messages MUST
       NOT have the compressed message flag set.
-    * if `request_compressed_response` is true, the response's messages MUST
+    * when `response_compressed` is true, the response's messages MUST
       have the compressed message flag set.
-    * response payload bodies are sized (in order): 31415, 59, 2653, 58979
+    * response payload bodies are sized (in order): 31415, 92653
     * clients are free to assert that the response payload body contents are
       zero and comparing the entire response messages against golden responses
 
 
- 2. Client calls StreamingOutputCall with:
-
-    ```
-    {
-      request_compressed_response: bool
-      response_type:UNCOMPRESSABLE
-      response_parameters:{
-        size: 31415
-      }
-      response_parameters:{
-        size: 59
-      }
-      response_parameters:{
-        size: 2653
-      }
-      response_parameters:{
-        size: 58979
-      }
-    }
-    ```
-
-    Client asserts:
-    * call was successful
-    * exactly four responses
-    * response payloads are UNCOMPRESSABLE
-    * the response MAY have the compressed message flag set. Some
-      implementations will choose to compress the payload even when the output
-      size if larger than the input.
-    * response payload bodies are sized (in order): 31415, 59, 2653, 58979
-    * clients are free to assert that the body of the responses are identical to
-      the golden uncompressable data at `test/cpp/interop/rnd.dat`.
-
-
 ### ping_pong
 
 This test verifies that full duplex bidi is supported.
 
 Server features:
 * [FullDuplexCall][]
-* [Compressable Payload][]
 
 Procedure:
  1. Client calls FullDuplexCall with:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_parameters:{
         size: 31415
       }
@@ -348,9 +414,8 @@ Procedure:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_parameters:{
-        size: 59
+        size: 9
       }
       payload:{
         body: 8 bytes of zeros
@@ -362,7 +427,6 @@ Procedure:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_parameters:{
         size: 2653
       }
@@ -376,7 +440,6 @@ Procedure:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_parameters:{
         size: 58979
       }
@@ -391,7 +454,6 @@ Procedure:
 Client asserts:
 * call was successful
 * exactly four responses
-* response payloads are COMPRESSABLE
 * response payload bodies are sized (in order): 31415, 9, 2653, 58979
 * clients are free to assert that the response payload body contents are zero
   and comparing the entire response messages against golden responses
@@ -421,12 +483,12 @@ with desired oauth scope.
 
 The test uses `--default_service_account` with GCE service account email and
 `--oauth_scope` with the OAuth scope to use. For testing against
-grpc-test.sandbox.googleapis.com, "https://www.googleapis.com/auth/xapi.zoo" should
+grpc-test.sandbox.googleapis.com, "https://www.googleapis.com/auth/xapi.zoo"
+should
 be passed in as `--oauth_scope`.
 
 Server features:
 * [UnaryCall][]
-* [Compressable Payload][]
 * [Echo Authenticated Username][]
 * [Echo OAuth Scope][]
 
@@ -436,7 +498,6 @@ Procedure:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_size: 314159
       payload:{
         body: 271828 bytes of zeros
@@ -448,7 +509,8 @@ Procedure:
 
 Client asserts:
 * call was successful
-* received SimpleResponse.username equals the value of `--default_service_account` flag
+* received SimpleResponse.username equals the value of
+  `--default_service_account` flag
 * received SimpleResponse.oauth_scope is in `--oauth_scope`
 * response payload body is 314159 bytes in size
 * clients are free to assert that the response payload body contents are zero
@@ -469,7 +531,6 @@ variable GOOGLE_APPLICATION_CREDENTIALS.
 
 Server features:
 * [UnaryCall][]
-* [Compressable Payload][]
 * [Echo Authenticated Username][]
 * [Echo OAuth Scope][]
 
@@ -479,7 +540,6 @@ Procedure:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_size: 314159
       payload:{
         body: 271828 bytes of zeros
@@ -492,7 +552,8 @@ Client asserts:
 * call was successful
 * received SimpleResponse.username is not empty and is in the json key file used
 by the auth library. The client can optionally check the username matches the
-email address in the key file or equals the value of `--default_service_account` flag.
+email address in the key file or equals the value of `--default_service_account`
+flag.
 * response payload body is 314159 bytes in size
 * clients are free to assert that the response payload body contents are zero
   and comparing the entire response message against a golden response
@@ -518,18 +579,18 @@ variable GOOGLE_APPLICATION_CREDENTIALS, *OR* if GCE credentials is used to
 fetch the token, `--default_service_account` can be used to pass in GCE service
 account email.
 - uses the flag `--oauth_scope` for the oauth scope.  For testing against
-grpc-test.sandbox.googleapis.com, "https://www.googleapis.com/auth/xapi.zoo" should
-be passed as the `--oauth_scope`.
+grpc-test.sandbox.googleapis.com, "https://www.googleapis.com/auth/xapi.zoo"
+should be passed as the `--oauth_scope`.
 
 Server features:
 * [UnaryCall][]
-* [Compressable Payload][]
 * [Echo Authenticated Username][]
 * [Echo OAuth Scope][]
 
 Procedure:
  1. Client uses the auth library to obtain an authorization token
- 2. Client configures the channel to use AccessTokenCredentials with the access token obtained in step 1
+ 2. Client configures the channel to use AccessTokenCredentials with the access
+    token obtained in step 1
  3. Client calls UnaryCall with the following message
 
     ```
@@ -550,22 +611,21 @@ json key file or GCE default service account email.
 
 Similar to the other auth tests, this test is only for cloud-to-prod path.
 
-This test verifies unary calls succeed in sending messages using a JWT or a service account
-credentials set on the RPC.
+This test verifies unary calls succeed in sending messages using a JWT or a
+service account credentials set on the RPC.
 
 The test
 - uses the flag `--service_account_key_file` with the path to a json key file
 downloaded from https://console.developers.google.com. Alternately, if using a
 usable auth implementation, it may specify the file location in the environment
 variable GOOGLE_APPLICATION_CREDENTIALS
-- optionally uses the flag `--oauth_scope` for the oauth scope if implementator 
+- optionally uses the flag `--oauth_scope` for the oauth scope if implementator
 wishes to use service account credential instead of JWT credential. For testing
-against grpc-test.sandbox.googleapis.com, oauth scope 
+against grpc-test.sandbox.googleapis.com, oauth scope
 "https://www.googleapis.com/auth/xapi.zoo" should be used.
 
 Server features:
 * [UnaryCall][]
-* [Compressable Payload][]
 * [Echo Authenticated Username][]
 * [Echo OAuth Scope][]
 
@@ -596,7 +656,6 @@ by the server.
 Server features:
 * [UnaryCall][]
 * [FullDuplexCall][]
-* [Compressable Payload][]
 * [Echo Metadata][]
 
 Procedure:
@@ -611,7 +670,6 @@ Procedure:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_size: 314159
       payload:{
         body: 271828 bytes of zeros
@@ -630,7 +688,6 @@ Procedure:
 
     ```
     {
-      response_type: COMPRESSABLE
       response_size: 314159
       payload:{
         body: 271828 bytes of zeros
@@ -736,14 +793,12 @@ from the server.
 
 Server features:
 * [FullDuplexCall][]
-* [Compressable Payload][]
 
 Procedure:
  1. Client starts FullDuplexCall with
 
     ```
     {
-      response_type: COMPRESSABLE
       response_parameters:{
         size: 31415
       }
@@ -887,6 +942,21 @@ payload body of size `SimpleRequest.response_size` bytes and type as appropriate
 for the `SimpleRequest.response_type`. If the server does not support the
 `response_type`, then it should fail the RPC with `INVALID_ARGUMENT`.
 
+### CompressedResponse
+[CompressedResponse]: #compressedresponse
+
+When the client sets `response_compressed` to true, the server's response is
+sent back compressed. Note that `response_compressed` is present on both
+`SimpleRequest` (unary) and `StreamingOutputCallRequest` (streaming).
+
+### CompressedRequest
+[CompressedRequest]: #compressedrequest
+
+When the client sets `expect_compressed` to true, the server expects the client
+request to be compressed. If it's not, it fails the RPC with `INVALID_ARGUMENT`.
+Note that `response_compressed` is present on both `SimpleRequest` (unary) and
+`StreamingOutputCallRequest` (streaming).
+
 ### StreamingInputCall
 [StreamingInputCall]: #streaminginputcall
 
@@ -913,20 +983,6 @@ payload body of size ResponseParameters.size bytes, as specified by its
 respective ResponseParameters. After receiving half close and sending all
 responses, it closes with OK.
 
-### Compressable Payload
-[Compressable Payload]: #compressable-payload
-
-When the client requests COMPRESSABLE payload, the response includes a payload
-of the size requested containing all zeros and the payload type is
-COMPRESSABLE.
-
-### Uncompressable Payload
-[Uncompressable Payload]: #uncompressable-payload
-
-When the client requests UNCOMPRESSABLE payload, the response includes a payload
-of the size requested containing uncompressable data and the payload type is
-UNCOMPRESSABLE.
-
 ### Echo Status
 [Echo Status]: #echo-status
 When the client sends a response_status in the request payload, the server closes
diff --git a/examples/csharp/helloworld/GreeterClient/Program.cs b/examples/csharp/helloworld/GreeterClient/Program.cs
index 4393f2f3c2..444d473509 100644
--- a/examples/csharp/helloworld/GreeterClient/Program.cs
+++ b/examples/csharp/helloworld/GreeterClient/Program.cs
@@ -39,7 +39,7 @@ namespace GreeterClient
         {
             Channel channel = new Channel("127.0.0.1:50051", ChannelCredentials.Insecure);
 
-            var client = Greeter.NewClient(channel);
+            var client = new Greeter.GreeterClient(channel);
             String user = "you";
 
             var reply = client.SayHello(new HelloRequest { Name = user });
diff --git a/examples/csharp/route_guide/RouteGuideClient/Program.cs b/examples/csharp/route_guide/RouteGuideClient/Program.cs
index ee51fbe8e0..8a173dcc3b 100644
--- a/examples/csharp/route_guide/RouteGuideClient/Program.cs
+++ b/examples/csharp/route_guide/RouteGuideClient/Program.cs
@@ -231,7 +231,7 @@ namespace Routeguide
         static void Main(string[] args)
         {
             var channel = new Channel("127.0.0.1:50052", ChannelCredentials.Insecure);
-            var client = new RouteGuideClient(RouteGuide.NewClient(channel));
+            var client = new RouteGuideClient(new RouteGuide.RouteGuideClient(channel));
 
             // Looking for a valid feature
             client.GetFeature(409146138, -746188906);
diff --git a/examples/objective-c/auth_sample/AuthSample.xcodeproj/project.pbxproj b/examples/objective-c/auth_sample/AuthSample.xcodeproj/project.pbxproj
index 51a39c578c..ab7419c9bc 100644
--- a/examples/objective-c/auth_sample/AuthSample.xcodeproj/project.pbxproj
+++ b/examples/objective-c/auth_sample/AuthSample.xcodeproj/project.pbxproj
@@ -116,11 +116,12 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 63E1E9A21B28CB2100EF0978 /* Build configuration list for PBXNativeTarget "AuthSample" */;
 			buildPhases = (
-				DAABBA7B5788A39108D7CA83 /* Check Pods Manifest.lock */,
+				DAABBA7B5788A39108D7CA83 /* [CP] Check Pods Manifest.lock */,
 				63E1E9781B28CB2000EF0978 /* Sources */,
 				63E1E9791B28CB2000EF0978 /* Frameworks */,
 				63E1E97A1B28CB2000EF0978 /* Resources */,
-				AEFCCC69DD59CE8F6EB769D7 /* Copy Pods Resources */,
+				AEFCCC69DD59CE8F6EB769D7 /* [CP] Copy Pods Resources */,
+				D24F6598302C412D4B863D6F /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -177,14 +178,14 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
-		AEFCCC69DD59CE8F6EB769D7 /* Copy Pods Resources */ = {
+		AEFCCC69DD59CE8F6EB769D7 /* [CP] Copy Pods Resources */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Copy Pods Resources";
+			name = "[CP] Copy Pods Resources";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -192,14 +193,29 @@
 			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-AuthSample/Pods-AuthSample-resources.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
-		DAABBA7B5788A39108D7CA83 /* Check Pods Manifest.lock */ = {
+		D24F6598302C412D4B863D6F /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Check Pods Manifest.lock";
+			name = "[CP] Embed Pods Frameworks";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-AuthSample/Pods-AuthSample-frameworks.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
+		DAABBA7B5788A39108D7CA83 /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "[CP] Check Pods Manifest.lock";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
diff --git a/examples/objective-c/auth_sample/AuthTestService.podspec b/examples/objective-c/auth_sample/AuthTestService.podspec
index e935626053..d246653ea7 100644
--- a/examples/objective-c/auth_sample/AuthTestService.podspec
+++ b/examples/objective-c/auth_sample/AuthTestService.podspec
@@ -2,6 +2,10 @@ Pod::Spec.new do |s|
   s.name     = "AuthTestService"
   s.version  = "0.0.1"
   s.license  = "New BSD"
+  s.authors  = { 'gRPC contributors' => 'grpc-io@googlegroups.com' }
+  s.homepage = "http://www.grpc.io/"
+  s.summary = "AuthTestService example"
+  s.source = { :git => 'https://github.com/grpc/grpc.git' }
 
   s.ios.deployment_target = "7.1"
   s.osx.deployment_target = "10.9"
diff --git a/examples/objective-c/helloworld/HelloWorld.podspec b/examples/objective-c/helloworld/HelloWorld.podspec
index bdf782f6ea..17b016b31a 100644
--- a/examples/objective-c/helloworld/HelloWorld.podspec
+++ b/examples/objective-c/helloworld/HelloWorld.podspec
@@ -2,6 +2,10 @@ Pod::Spec.new do |s|
   s.name     = "HelloWorld"
   s.version  = "0.0.1"
   s.license  = "New BSD"
+  s.authors  = { 'gRPC contributors' => 'grpc-io@googlegroups.com' }
+  s.homepage = "http://www.grpc.io/"
+  s.summary = "HelloWorld example"
+  s.source = { :git => 'https://github.com/grpc/grpc.git' }
 
   s.ios.deployment_target = "7.1"
   s.osx.deployment_target = "10.9"
diff --git a/examples/objective-c/helloworld/HelloWorld.xcodeproj/project.pbxproj b/examples/objective-c/helloworld/HelloWorld.xcodeproj/project.pbxproj
index 250f009996..df5c40cda2 100644
--- a/examples/objective-c/helloworld/HelloWorld.xcodeproj/project.pbxproj
+++ b/examples/objective-c/helloworld/HelloWorld.xcodeproj/project.pbxproj
@@ -7,7 +7,6 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
-		3EF35C14BDC2B65E21837F02 /* libPods.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 43AB08B32839A6700EA00DD4 /* libPods.a */; };
 		5E3690661B2A23800040F884 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 5E3690651B2A23800040F884 /* main.m */; };
 		5E3690691B2A23800040F884 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 5E3690681B2A23800040F884 /* AppDelegate.m */; };
 		5E36906C1B2A23800040F884 /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 5E36906B1B2A23800040F884 /* ViewController.m */; };
@@ -18,7 +17,6 @@
 
 /* Begin PBXFileReference section */
 		0C432EF610DB15C0F47A66BB /* Pods-HelloWorld.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-HelloWorld.release.xcconfig"; path = "Pods/Target Support Files/Pods-HelloWorld/Pods-HelloWorld.release.xcconfig"; sourceTree = "<group>"; };
-		43AB08B32839A6700EA00DD4 /* libPods.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libPods.a; sourceTree = BUILT_PRODUCTS_DIR; };
 		5E3690601B2A23800040F884 /* HelloWorld.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = HelloWorld.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		5E3690641B2A23800040F884 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		5E3690651B2A23800040F884 /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
@@ -37,7 +35,6 @@
 			buildActionMask = 2147483647;
 			files = (
 				EF61CF6AE2536A31D47F0E63 /* libPods-HelloWorld.a in Frameworks */,
-				3EF35C14BDC2B65E21837F02 /* libPods.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -88,7 +85,6 @@
 			isa = PBXGroup;
 			children = (
 				6B4E1F55F8A2EC95A0E7EE88 /* libPods-HelloWorld.a */,
-				43AB08B32839A6700EA00DD4 /* libPods.a */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -109,12 +105,12 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 5E3690831B2A23810040F884 /* Build configuration list for PBXNativeTarget "HelloWorld" */;
 			buildPhases = (
-				ACF9162361FB8F24C70657DE /* Check Pods Manifest.lock */,
+				ACF9162361FB8F24C70657DE /* [CP] Check Pods Manifest.lock */,
 				5E36905C1B2A23800040F884 /* Sources */,
 				5E36905D1B2A23800040F884 /* Frameworks */,
 				5E36905E1B2A23800040F884 /* Resources */,
-				4C7D815378D98AB3BFC1A7D5 /* Copy Pods Resources */,
-				BB76529986A8BFAF19A385B1 /* Embed Pods Frameworks */,
+				4C7D815378D98AB3BFC1A7D5 /* [CP] Copy Pods Resources */,
+				BB76529986A8BFAF19A385B1 /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -170,14 +166,14 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
-		4C7D815378D98AB3BFC1A7D5 /* Copy Pods Resources */ = {
+		4C7D815378D98AB3BFC1A7D5 /* [CP] Copy Pods Resources */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Copy Pods Resources";
+			name = "[CP] Copy Pods Resources";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -185,14 +181,14 @@
 			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-HelloWorld/Pods-HelloWorld-resources.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
-		ACF9162361FB8F24C70657DE /* Check Pods Manifest.lock */ = {
+		ACF9162361FB8F24C70657DE /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Check Pods Manifest.lock";
+			name = "[CP] Check Pods Manifest.lock";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -200,19 +196,19 @@
 			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
-		BB76529986A8BFAF19A385B1 /* Embed Pods Frameworks */ = {
+		BB76529986A8BFAF19A385B1 /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Embed Pods Frameworks";
+			name = "[CP] Embed Pods Frameworks";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods/Pods-frameworks.sh\"\n";
+			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-HelloWorld/Pods-HelloWorld-frameworks.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
 /* End PBXShellScriptBuildPhase section */
diff --git a/examples/objective-c/route_guide/RouteGuide.podspec b/examples/objective-c/route_guide/RouteGuide.podspec
index 4bc2c42cbb..97a61ff51a 100644
--- a/examples/objective-c/route_guide/RouteGuide.podspec
+++ b/examples/objective-c/route_guide/RouteGuide.podspec
@@ -2,6 +2,10 @@ Pod::Spec.new do |s|
   s.name     = "RouteGuide"
   s.version  = "0.0.1"
   s.license  = "New BSD"
+  s.authors  = { 'gRPC contributors' => 'grpc-io@googlegroups.com' }
+  s.homepage = "http://www.grpc.io/"
+  s.summary = "RouteGuide example"
+  s.source = { :git => 'https://github.com/grpc/grpc.git' }
 
   s.ios.deployment_target = "7.1"
   s.osx.deployment_target = "10.9"
diff --git a/examples/objective-c/route_guide/RouteGuideClient.xcodeproj/project.pbxproj b/examples/objective-c/route_guide/RouteGuideClient.xcodeproj/project.pbxproj
index f99775562c..0bb84b3b90 100644
--- a/examples/objective-c/route_guide/RouteGuideClient.xcodeproj/project.pbxproj
+++ b/examples/objective-c/route_guide/RouteGuideClient.xcodeproj/project.pbxproj
@@ -116,12 +116,12 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 632527A31B1D0396003073D9 /* Build configuration list for PBXNativeTarget "RouteGuideClient" */;
 			buildPhases = (
-				C6FC30AD2376EC04317237C5 /* Check Pods Manifest.lock */,
+				C6FC30AD2376EC04317237C5 /* [CP] Check Pods Manifest.lock */,
 				632527791B1D0395003073D9 /* Sources */,
 				6325277A1B1D0395003073D9 /* Frameworks */,
 				6325277B1B1D0395003073D9 /* Resources */,
-				FFE0BCF30339E7A50A989EAB /* Copy Pods Resources */,
-				B5388EC5A25E89021740B916 /* Embed Pods Frameworks */,
+				FFE0BCF30339E7A50A989EAB /* [CP] Copy Pods Resources */,
+				B5388EC5A25E89021740B916 /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -178,14 +178,14 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
-		B5388EC5A25E89021740B916 /* Embed Pods Frameworks */ = {
+		B5388EC5A25E89021740B916 /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Embed Pods Frameworks";
+			name = "[CP] Embed Pods Frameworks";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -193,14 +193,14 @@
 			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-RouteGuideClient/Pods-RouteGuideClient-frameworks.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
-		C6FC30AD2376EC04317237C5 /* Check Pods Manifest.lock */ = {
+		C6FC30AD2376EC04317237C5 /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Check Pods Manifest.lock";
+			name = "[CP] Check Pods Manifest.lock";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -208,14 +208,14 @@
 			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
-		FFE0BCF30339E7A50A989EAB /* Copy Pods Resources */ = {
+		FFE0BCF30339E7A50A989EAB /* [CP] Copy Pods Resources */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Copy Pods Resources";
+			name = "[CP] Copy Pods Resources";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
diff --git a/include/grpc++/impl/codegen/client_context.h b/include/grpc++/impl/codegen/client_context.h
index e23fd4eda3..a132c9a57a 100644
--- a/include/grpc++/impl/codegen/client_context.h
+++ b/include/grpc++/impl/codegen/client_context.h
@@ -193,7 +193,7 @@ class ClientContext {
   ///
   /// \return A multimap of initial metadata key-value pairs from the server.
   const std::multimap<grpc::string_ref, grpc::string_ref>&
-  GetServerInitialMetadata() {
+  GetServerInitialMetadata() const {
     GPR_CODEGEN_ASSERT(initial_metadata_received_);
     return recv_initial_metadata_;
   }
@@ -205,7 +205,7 @@ class ClientContext {
   ///
   /// \return A multimap of metadata trailing key-value pairs from the server.
   const std::multimap<grpc::string_ref, grpc::string_ref>&
-  GetServerTrailingMetadata() {
+  GetServerTrailingMetadata() const {
     // TODO(yangg) check finished
     return trailing_metadata_;
   }
@@ -230,13 +230,13 @@ class ClientContext {
 
 #ifndef GRPC_CXX0X_NO_CHRONO
   /// Return the deadline for the client call.
-  std::chrono::system_clock::time_point deadline() {
+  std::chrono::system_clock::time_point deadline() const {
     return Timespec2Timepoint(deadline_);
   }
 #endif  // !GRPC_CXX0X_NO_CHRONO
 
   /// Return a \a gpr_timespec representation of the client call's deadline.
-  gpr_timespec raw_deadline() { return deadline_; }
+  gpr_timespec raw_deadline() const { return deadline_; }
 
   /// Set the per call authority header (see
   /// https://tools.ietf.org/html/rfc7540#section-8.1.2.3).
@@ -337,7 +337,7 @@ class ClientContext {
                                   const InputMessage& request,
                                   OutputMessage* result);
 
-  grpc_call* call() { return call_; }
+  grpc_call* call() const { return call_; }
   void set_call(grpc_call* call, const std::shared_ptr<Channel>& channel);
 
   uint32_t initial_metadata_flags() const {
diff --git a/include/grpc++/impl/codegen/server_context.h b/include/grpc++/impl/codegen/server_context.h
index a1e1ed176f..cea13a513f 100644
--- a/include/grpc++/impl/codegen/server_context.h
+++ b/include/grpc++/impl/codegen/server_context.h
@@ -94,12 +94,12 @@ class ServerContext {
   ~ServerContext();
 
 #ifndef GRPC_CXX0X_NO_CHRONO
-  std::chrono::system_clock::time_point deadline() {
+  std::chrono::system_clock::time_point deadline() const {
     return Timespec2Timepoint(deadline_);
   }
 #endif  // !GRPC_CXX0X_NO_CHRONO
 
-  gpr_timespec raw_deadline() { return deadline_; }
+  gpr_timespec raw_deadline() const { return deadline_; }
 
   void AddInitialMetadata(const grpc::string& key, const grpc::string& value);
   void AddTrailingMetadata(const grpc::string& key, const grpc::string& value);
@@ -122,7 +122,8 @@ class ServerContext {
   // was called.
   void TryCancel() const;
 
-  const std::multimap<grpc::string_ref, grpc::string_ref>& client_metadata() {
+  const std::multimap<grpc::string_ref, grpc::string_ref>& client_metadata()
+      const {
     return client_metadata_;
   }
 
diff --git a/src/compiler/csharp_generator.cc b/src/compiler/csharp_generator.cc
index fc8feaf0fc..f5a0876cf9 100644
--- a/src/compiler/csharp_generator.cc
+++ b/src/compiler/csharp_generator.cc
@@ -333,22 +333,28 @@ void GenerateClientStub(Printer* out, const ServiceDescriptor *service) {
   out->Indent();
 
   // constructors
+  out->Print("/// <summary>Creates a new client for $servicename$</summary>\n"
+             "/// <param name=\"channel\">The channel to use to make remote calls.</param>\n",
+             "servicename", GetServiceClassName(service));
   out->Print("public $name$(Channel channel) : base(channel)\n",
              "name", GetClientClassName(service));
   out->Print("{\n");
   out->Print("}\n");
+  out->Print("/// <summary>Creates a new client for $servicename$ that uses a custom <c>CallInvoker</c>.</summary>\n"
+             "/// <param name=\"callInvoker\">The callInvoker to use to make remote calls.</param>\n",
+             "servicename", GetServiceClassName(service));
   out->Print("public $name$(CallInvoker callInvoker) : base(callInvoker)\n",
              "name", GetClientClassName(service));
   out->Print("{\n");
   out->Print("}\n");
-  out->Print("///<summary>Protected parameterless constructor to allow creation"
+  out->Print("/// <summary>Protected parameterless constructor to allow creation"
              " of test doubles.</summary>\n");
   out->Print("protected $name$() : base()\n",
              "name", GetClientClassName(service));
   out->Print("{\n");
   out->Print("}\n");
-  out->Print("///<summary>Protected constructor to allow creation of configured"
-             " clients.</summary>\n");
+  out->Print("/// <summary>Protected constructor to allow creation of configured clients.</summary>\n"
+             "/// <param name=\"configuration\">The client configuration.</param>\n");
   out->Print("protected $name$(ClientBaseConfiguration configuration)"
              " : base(configuration)\n",
              "name", GetClientClassName(service));
@@ -485,20 +491,6 @@ void GenerateBindServiceMethod(Printer* out, const ServiceDescriptor *service) {
   out->Print("\n");
 }
 
-void GenerateNewStubMethods(Printer* out, const ServiceDescriptor *service) {
-  out->Print("/// <summary>Creates a new client for $servicename$</summary>\n",
-             "servicename", GetServiceClassName(service));
-  out->Print("public static $classname$ NewClient(Channel channel)\n",
-             "classname", GetClientClassName(service));
-  out->Print("{\n");
-  out->Indent();
-  out->Print("return new $classname$(channel);\n", "classname",
-             GetClientClassName(service));
-  out->Outdent();
-  out->Print("}\n");
-  out->Print("\n");
-}
-
 void GenerateService(Printer* out, const ServiceDescriptor *service,
                      bool generate_client, bool generate_server,
                      bool internal_access) {
@@ -524,7 +516,6 @@ void GenerateService(Printer* out, const ServiceDescriptor *service,
   }
   if (generate_client) {
     GenerateClientStub(out, service);
-    GenerateNewStubMethods(out, service);
   }
   if (generate_server) {
     GenerateBindServiceMethod(out, service);
diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.c b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
index 9aa39ba26c..9c99ff883a 100644
--- a/src/core/ext/transport/chttp2/transport/chttp2_transport.c
+++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
@@ -264,6 +264,7 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
   t->parsing.is_client = is_client;
   t->parsing.deframe_state =
       is_client ? GRPC_DTS_FH_0 : GRPC_DTS_CLIENT_PREFIX_0;
+  t->parsing.is_first_frame = true;
   t->writing.is_client = is_client;
   t->optional_drop_message = gpr_empty_slice();
   grpc_connectivity_state_init(
@@ -643,8 +644,7 @@ static void finish_global_actions(grpc_exec_ctx *exec_ctx,
 
   for (;;) {
     if (!t->executor.writing_active && !t->closed &&
-        grpc_chttp2_unlocking_check_writes(exec_ctx, &t->global, &t->writing,
-                                           t->executor.parsing_active)) {
+        grpc_chttp2_unlocking_check_writes(exec_ctx, &t->global, &t->writing)) {
       t->executor.writing_active = 1;
       REF_TRANSPORT(t, "writing");
       prevent_endpoint_shutdown(t);
@@ -1093,6 +1093,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx,
     stream_global->recv_trailing_metadata_finished =
         add_closure_barrier(on_complete);
     stream_global->recv_trailing_metadata = op->recv_trailing_metadata;
+    stream_global->final_metadata_requested = true;
     grpc_chttp2_list_add_check_read_ops(transport_global, stream_global);
   }
 
@@ -1246,7 +1247,8 @@ static void check_read_ops(grpc_exec_ctx *exec_ctx,
       stream_global->recv_initial_metadata_ready = NULL;
     }
     if (stream_global->recv_message_ready != NULL) {
-      while (stream_global->seen_error &&
+      while (stream_global->final_metadata_requested &&
+             stream_global->seen_error &&
              (bs = grpc_chttp2_incoming_frame_queue_pop(
                   &stream_global->incoming_frames)) != NULL) {
         incoming_byte_stream_destroy_locked(exec_ctx, NULL, NULL, bs);
@@ -1805,7 +1807,7 @@ static void post_reading_action_locked(grpc_exec_ctx *exec_ctx,
     UNREF_TRANSPORT(exec_ctx, t, "reading_action");
   }
 
-  GRPC_ERROR_UNREF(error);
+  GRPC_LOG_IF_ERROR("close_transport", error);
 }
 
 /*******************************************************************************
diff --git a/src/core/ext/transport/chttp2/transport/frame_rst_stream.c b/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
index a7aefb9915..e3a3c9e4a7 100644
--- a/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
+++ b/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
@@ -102,12 +102,14 @@ grpc_error *grpc_chttp2_rst_stream_parser_parse(
   if (p->byte == 4) {
     GPR_ASSERT(is_last);
     stream_parsing->received_close = 1;
-    stream_parsing->forced_close_error = grpc_error_set_int(
-        GRPC_ERROR_CREATE("RST_STREAM"), GRPC_ERROR_INT_HTTP2_ERROR,
-        (intptr_t)((((uint32_t)p->reason_bytes[0]) << 24) |
-                   (((uint32_t)p->reason_bytes[1]) << 16) |
-                   (((uint32_t)p->reason_bytes[2]) << 8) |
-                   (((uint32_t)p->reason_bytes[3]))));
+    if (stream_parsing->forced_close_error == GRPC_ERROR_NONE) {
+      stream_parsing->forced_close_error = grpc_error_set_int(
+          GRPC_ERROR_CREATE("RST_STREAM"), GRPC_ERROR_INT_HTTP2_ERROR,
+          (intptr_t)((((uint32_t)p->reason_bytes[0]) << 24) |
+                     (((uint32_t)p->reason_bytes[1]) << 16) |
+                     (((uint32_t)p->reason_bytes[2]) << 8) |
+                     (((uint32_t)p->reason_bytes[3]))));
+    }
   }
 
   return GRPC_ERROR_NONE;
diff --git a/src/core/ext/transport/chttp2/transport/internal.h b/src/core/ext/transport/chttp2/transport/internal.h
index 54e72ebd24..d63170e350 100644
--- a/src/core/ext/transport/chttp2/transport/internal.h
+++ b/src/core/ext/transport/chttp2/transport/internal.h
@@ -265,6 +265,7 @@ struct grpc_chttp2_transport_parsing {
   uint8_t incoming_frame_type;
   uint8_t incoming_frame_flags;
   uint8_t header_eof;
+  bool is_first_frame;
   uint32_t expect_continuation_stream_id;
   uint32_t incoming_frame_size;
   uint32_t incoming_stream_id;
@@ -440,6 +441,7 @@ typedef struct {
 
   bool published_initial_metadata;
   bool published_trailing_metadata;
+  bool final_metadata_requested;
 
   grpc_chttp2_incoming_metadata_buffer received_initial_metadata;
   grpc_chttp2_incoming_metadata_buffer received_trailing_metadata;
@@ -524,8 +526,7 @@ struct grpc_chttp2_stream {
     are required, and schedule them if so */
 int grpc_chttp2_unlocking_check_writes(grpc_exec_ctx *exec_ctx,
                                        grpc_chttp2_transport_global *global,
-                                       grpc_chttp2_transport_writing *writing,
-                                       int is_parsing);
+                                       grpc_chttp2_transport_writing *writing);
 void grpc_chttp2_perform_writes(
     grpc_exec_ctx *exec_ctx, grpc_chttp2_transport_writing *transport_writing,
     grpc_endpoint *endpoint);
diff --git a/src/core/ext/transport/chttp2/transport/parsing.c b/src/core/ext/transport/chttp2/transport/parsing.c
index 785134091f..991d7729af 100644
--- a/src/core/ext/transport/chttp2/transport/parsing.c
+++ b/src/core/ext/transport/chttp2/transport/parsing.c
@@ -468,6 +468,17 @@ grpc_error *grpc_chttp2_perform_read(
 
 static grpc_error *init_frame_parser(
     grpc_exec_ctx *exec_ctx, grpc_chttp2_transport_parsing *transport_parsing) {
+  if (transport_parsing->is_first_frame &&
+      transport_parsing->incoming_frame_type != GRPC_CHTTP2_FRAME_SETTINGS) {
+    char *msg;
+    gpr_asprintf(
+        &msg, "Expected SETTINGS frame as the first frame, got frame type %d",
+        transport_parsing->incoming_frame_type);
+    grpc_error *err = GRPC_ERROR_CREATE(msg);
+    gpr_free(msg);
+    return err;
+  }
+  transport_parsing->is_first_frame = false;
   if (transport_parsing->expect_continuation_stream_id != 0) {
     if (transport_parsing->incoming_frame_type !=
         GRPC_CHTTP2_FRAME_CONTINUATION) {
diff --git a/src/core/ext/transport/chttp2/transport/writing.c b/src/core/ext/transport/chttp2/transport/writing.c
index add7678182..b19f5f068d 100644
--- a/src/core/ext/transport/chttp2/transport/writing.c
+++ b/src/core/ext/transport/chttp2/transport/writing.c
@@ -45,7 +45,7 @@ static void finalize_outbuf(grpc_exec_ctx *exec_ctx,
 
 int grpc_chttp2_unlocking_check_writes(
     grpc_exec_ctx *exec_ctx, grpc_chttp2_transport_global *transport_global,
-    grpc_chttp2_transport_writing *transport_writing, int is_parsing) {
+    grpc_chttp2_transport_writing *transport_writing) {
   grpc_chttp2_stream_global *stream_global;
   grpc_chttp2_stream_writing *stream_writing;
 
@@ -61,7 +61,7 @@ int grpc_chttp2_unlocking_check_writes(
                                 [GRPC_CHTTP2_SETTINGS_HEADER_TABLE_SIZE]);
 
   if (transport_global->dirtied_local_settings &&
-      !transport_global->sent_local_settings && !is_parsing) {
+      !transport_global->sent_local_settings) {
     gpr_slice_buffer_add(
         &transport_writing->outbuf,
         grpc_chttp2_settings_create(
diff --git a/src/core/lib/iomgr/tcp_server_windows.c b/src/core/lib/iomgr/tcp_server_windows.c
index 2a51671ec7..86982bc183 100644
--- a/src/core/lib/iomgr/tcp_server_windows.c
+++ b/src/core/lib/iomgr/tcp_server_windows.c
@@ -396,7 +396,7 @@ static grpc_error *add_socket_to_server(grpc_tcp_server *s, SOCKET sock,
                                         size_t addr_len, unsigned port_index,
                                         grpc_tcp_listener **listener) {
   grpc_tcp_listener *sp = NULL;
-  int port;
+  int port = -1;
   int status;
   GUID guid = WSAID_ACCEPTEX;
   DWORD ioctl_num_bytes;
diff --git a/src/csharp/.gitignore b/src/csharp/.gitignore
index 0f96a48221..fc2875a1dd 100644
--- a/src/csharp/.gitignore
+++ b/src/csharp/.gitignore
@@ -1,5 +1,7 @@
+*.xproj.user
 *.userprefs
 *.csproj.user
+*.lock.json
 StyleCop.Cache
 test-results
 packages
diff --git a/src/csharp/Grpc.Auth/Grpc.Auth.csproj b/src/csharp/Grpc.Auth/Grpc.Auth.csproj
index 3acea7d2f8..1fa14fc3df 100644
--- a/src/csharp/Grpc.Auth/Grpc.Auth.csproj
+++ b/src/csharp/Grpc.Auth/Grpc.Auth.csproj
@@ -81,6 +81,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="Grpc.Auth.nuspec" />
+    <None Include="Grpc.Auth.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Auth/Grpc.Auth.project.json b/src/csharp/Grpc.Auth/Grpc.Auth.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.Auth/Grpc.Auth.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.Auth/Grpc.Auth.xproj b/src/csharp/Grpc.Auth/Grpc.Auth.xproj
new file mode 100644
index 0000000000..dd3d94c574
--- /dev/null
+++ b/src/csharp/Grpc.Auth/Grpc.Auth.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>c82631ed-06d1-4458-87bc-8257d12307a8</ProjectGuid>
+    <RootNamespace>Grpc.Auth</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\Grpc.Core\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Auth/project.json b/src/csharp/Grpc.Auth/project.json
new file mode 100644
index 0000000000..1677565824
--- /dev/null
+++ b/src/csharp/Grpc.Auth/project.json
@@ -0,0 +1,32 @@
+{
+  "version": "0.15.0-dev",
+  "title": "gRPC C# Auth",
+  "authors": [ "Google Inc." ],
+  "copyright": "Copyright 2015, Google Inc.",
+  "packOptions": {
+    "summary": "Auth library for C# implementation of gRPC - an RPC library and framework",
+    "description": "Auth library for C# implementation of gRPC - an RPC library and framework. See project site for more info.",
+    "owners": [ "grpc-packages" ],
+    "licenseUrl": "https://github.com/grpc/grpc/blob/master/LICENSE",
+    "projectUrl": "https://github.com/grpc/grpc",
+    "requireLicenseAcceptance": false,
+    "tags": [ "gRPC RPC Protocol HTTP/2 Auth OAuth2" ],
+  },
+  "dependencies": {
+    "Grpc.Core": "0.15.0-dev",
+    "Google.Apis.Auth": "1.11.1"
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "net45"
+      ],
+      "dependencies": {
+        "Microsoft.NETCore.Portable.Compatibility": "1.0.1-rc2-24027",
+        "NETStandard.Library": "1.5.0-rc2-24027",
+        "System.Threading.Tasks": "4.0.11-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.Core.Tests/AppDomainUnloadTest.cs b/src/csharp/Grpc.Core.Tests/AppDomainUnloadTest.cs
index e605a310f9..064bc13cab 100644
--- a/src/csharp/Grpc.Core.Tests/AppDomainUnloadTest.cs
+++ b/src/csharp/Grpc.Core.Tests/AppDomainUnloadTest.cs
@@ -32,13 +32,7 @@
 #endregion
 
 using System;
-using System.Diagnostics;
-using System.Linq;
-using System.Reflection;
-using System.Threading;
 using System.Threading.Tasks;
-using Grpc.Core;
-using Grpc.Core.Internal;
 using Grpc.Core.Utils;
 using NUnit.Framework;
 
@@ -46,6 +40,13 @@ namespace Grpc.Core.Tests
 {
     public class AppDomainUnloadTest
     {
+#if NETSTANDARD1_5
+        [Test]
+        [Ignore("Not supported for CoreCLR")]
+        public void AppDomainUnloadHookCanCleanupAbandonedCall()
+        {
+        }
+#else
         [Test]
         public void AppDomainUnloadHookCanCleanupAbandonedCall()
         {
@@ -86,5 +87,6 @@ namespace Grpc.Core.Tests
                 readyToShutdown.Task.Wait();  // make sure handler is running
             }
         }
+#endif
     }
 }
diff --git a/src/csharp/Grpc.Core.Tests/CompressionTest.cs b/src/csharp/Grpc.Core.Tests/CompressionTest.cs
index 378c81851c..16be210508 100644
--- a/src/csharp/Grpc.Core.Tests/CompressionTest.cs
+++ b/src/csharp/Grpc.Core.Tests/CompressionTest.cs
@@ -34,6 +34,7 @@
 using System;
 using System.Diagnostics;
 using System.Linq;
+using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using Grpc.Core;
@@ -118,5 +119,30 @@ namespace Grpc.Core.Tests
 
             await call.ResponseStream.ToListAsync();
         }
+
+        [Test]
+        public void CanReadCompressedMessages()
+        {
+            var compressionMetadata = new Metadata
+            {
+                { new Metadata.Entry(Metadata.CompressionRequestAlgorithmMetadataKey, "gzip") }
+            };
+
+            helper.UnaryHandler = new UnaryServerMethod<string, string>(async (req, context) =>
+            {
+                await context.WriteResponseHeadersAsync(compressionMetadata);
+                return req;
+            });
+
+            var stringBuilder = new StringBuilder();
+            for (int i = 0; i < 200000; i++)
+            {
+                stringBuilder.Append('a');
+            }
+            var request = stringBuilder.ToString();
+            var response = Calls.BlockingUnaryCall(helper.CreateUnaryCall(new CallOptions(compressionMetadata)), request);
+
+            Assert.AreEqual(request, response);
+        }
     }
 }
diff --git a/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
index 074c9603dc..f6c226567d 100644
--- a/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
+++ b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
@@ -99,6 +99,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <None Include="Grpc.Core.Tests.project.json" />
     <None Include="packages.config">
       <SubType>Designer</SubType>
     </None>
diff --git a/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.project.json b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.xproj b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.xproj
new file mode 100644
index 0000000000..0582329154
--- /dev/null
+++ b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>759e23b2-fc04-4695-902d-b073cded3599</ProjectGuid>
+    <RootNamespace>Grpc.Core.Tests</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Core.Tests/NUnitMain.cs b/src/csharp/Grpc.Core.Tests/NUnitMain.cs
index 9c1d7bf3c8..24a9f846d1 100644
--- a/src/csharp/Grpc.Core.Tests/NUnitMain.cs
+++ b/src/csharp/Grpc.Core.Tests/NUnitMain.cs
@@ -49,7 +49,7 @@ namespace Grpc.Core.Tests
         {
             // Make logger immune to NUnit capturing stdout and stderr to workaround https://github.com/nunit/nunit/issues/1406.
             GrpcEnvironment.SetLogger(new TextWriterLogger(Console.Error));
-#if DOTNET5_4
+#if NETSTANDARD1_5
             return new AutoRun(typeof(NUnitMain).GetTypeInfo().Assembly).Execute(args, new ExtendedTextWrapper(Console.Out), Console.In);
 #else
             return new AutoRun().Execute(args);
diff --git a/src/csharp/Grpc.Core.Tests/NUnitVersionTest.cs b/src/csharp/Grpc.Core.Tests/NUnitVersionTest.cs
index 3fa6ad09c0..1a9e441611 100644
--- a/src/csharp/Grpc.Core.Tests/NUnitVersionTest.cs
+++ b/src/csharp/Grpc.Core.Tests/NUnitVersionTest.cs
@@ -56,7 +56,7 @@ namespace Grpc.Core.Tests
                 Console.Error.WriteLine("You are using and old version of NUnit that doesn't support async tests and skips them instead. " +
                 "This test has failed to indicate that.");
                 Console.Error.Flush();
-                Environment.Exit(1);
+                throw new Exception("NUnitVersionTest has failed.");
             }
         }
 
diff --git a/src/csharp/Grpc.Core.Tests/SanityTest.cs b/src/csharp/Grpc.Core.Tests/SanityTest.cs
index 3830f0cbac..501992c569 100644
--- a/src/csharp/Grpc.Core.Tests/SanityTest.cs
+++ b/src/csharp/Grpc.Core.Tests/SanityTest.cs
@@ -45,6 +45,8 @@ namespace Grpc.Core.Tests
 {
     public class SanityTest
     {
+        // TODO: make sanity test work for CoreCLR as well
+#if !NETSTANDARD1_5
         /// <summary>
         /// Because we depend on a native library, sometimes when things go wrong, the
         /// entire NUnit test process crashes. To be able to track down problems better,
@@ -121,5 +123,6 @@ namespace Grpc.Core.Tests
             }
             return result;
         }
+#endif
     }
 }
diff --git a/src/csharp/Grpc.Core.Tests/project.json b/src/csharp/Grpc.Core.Tests/project.json
new file mode 100644
index 0000000000..3ad081df39
--- /dev/null
+++ b/src/csharp/Grpc.Core.Tests/project.json
@@ -0,0 +1,56 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.Core": {
+      "target": "project"
+    },
+    "Newtonsoft.Json": "8.0.3",
+    "NUnit": "3.2.0",
+    "NUnitLite": "3.2.0-*"
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  },
+}
diff --git a/src/csharp/Grpc.Core/Grpc.Core.csproj b/src/csharp/Grpc.Core/Grpc.Core.csproj
index a796911b99..1952ee3712 100644
--- a/src/csharp/Grpc.Core/Grpc.Core.csproj
+++ b/src/csharp/Grpc.Core/Grpc.Core.csproj
@@ -141,6 +141,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="Grpc.Core.nuspec" />
+    <None Include="Grpc.Core.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
   <Import Project="NativeDeps.targets" />
@@ -148,7 +149,7 @@
   <ItemGroup />
   <ItemGroup>
     <EmbeddedResource Include="..\..\..\etc\roots.pem">
-      <Link>Resources\roots.pem</Link>
+      <Link>roots.pem</Link>
     </EmbeddedResource>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Core/Grpc.Core.nuspec b/src/csharp/Grpc.Core/Grpc.Core.nuspec
index 0ada0049c2..fa2c1fbff2 100644
--- a/src/csharp/Grpc.Core/Grpc.Core.nuspec
+++ b/src/csharp/Grpc.Core/Grpc.Core.nuspec
@@ -24,11 +24,11 @@
     <file src="bin/ReleaseSigned/Grpc.Core.xml" target="lib/net45" />
     <file src="**\*.cs" target="src" />
     <file src="Grpc.Core.targets" target="\build\net45\Grpc.Core.targets" />
-    <file src="windows_x86/grpc_csharp_ext.dll" target="/build/native/bin/windows_x86/grpc_csharp_ext.dll" />
-    <file src="windows_x64/grpc_csharp_ext.dll" target="/build/native/bin/windows_x64/grpc_csharp_ext.dll" />
-    <file src="linux_x86/libgrpc_csharp_ext.so" target="/build/native/bin/linux_x86/libgrpc_csharp_ext.so" />
-    <file src="linux_x64/libgrpc_csharp_ext.so" target="/build/native/bin/linux_x64/libgrpc_csharp_ext.so" />
-    <file src="macosx_x86/libgrpc_csharp_ext.dylib" target="/build/native/bin/macosx_x86/libgrpc_csharp_ext.dylib" />
-    <file src="macosx_x64/libgrpc_csharp_ext.dylib" target="/build/native/bin/macosx_x64/libgrpc_csharp_ext.dylib" />
+    <file src="../nativelibs/windows_x86/grpc_csharp_ext.dll" target="/build/native/bin/windows_x86/grpc_csharp_ext.dll" />
+    <file src="../nativelibs/windows_x64/grpc_csharp_ext.dll" target="/build/native/bin/windows_x64/grpc_csharp_ext.dll" />
+    <file src="../nativelibs/linux_x86/libgrpc_csharp_ext.so" target="/build/native/bin/linux_x86/libgrpc_csharp_ext.so" />
+    <file src="../nativelibs/linux_x64/libgrpc_csharp_ext.so" target="/build/native/bin/linux_x64/libgrpc_csharp_ext.so" />
+    <file src="../nativelibs/macosx_x86/libgrpc_csharp_ext.dylib" target="/build/native/bin/macosx_x86/libgrpc_csharp_ext.dylib" />
+    <file src="../nativelibs/macosx_x64/libgrpc_csharp_ext.dylib" target="/build/native/bin/macosx_x64/libgrpc_csharp_ext.dylib" />
   </files>
 </package>
diff --git a/src/csharp/Grpc.Core/Grpc.Core.project.json b/src/csharp/Grpc.Core/Grpc.Core.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.Core/Grpc.Core.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.Core/Grpc.Core.xproj b/src/csharp/Grpc.Core/Grpc.Core.xproj
new file mode 100644
index 0000000000..137236ffdb
--- /dev/null
+++ b/src/csharp/Grpc.Core/Grpc.Core.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>dc9908b6-f291-4fc8-a46d-2ea2551790ec</ProjectGuid>
+    <RootNamespace>Grpc.Core</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Core/GrpcEnvironment.cs b/src/csharp/Grpc.Core/GrpcEnvironment.cs
index e9e4cb4cbb..eeed699712 100644
--- a/src/csharp/Grpc.Core/GrpcEnvironment.cs
+++ b/src/csharp/Grpc.Core/GrpcEnvironment.cs
@@ -105,7 +105,7 @@ namespace Grpc.Core
 
             if (instanceToShutdown != null)
             {
-                await instanceToShutdown.ShutdownAsync();
+                await instanceToShutdown.ShutdownAsync().ConfigureAwait(false);
             }
         }
 
@@ -352,8 +352,12 @@ namespace Grpc.Core
                 {
                     if (!hooksRegistered)
                     {
+                        // TODO(jtattermusch): register shutdownhooks for CoreCLR as well
+#if !NETSTANDARD1_5
+
                         AppDomain.CurrentDomain.ProcessExit += ShutdownHookHandler;
                         AppDomain.CurrentDomain.DomainUnload += ShutdownHookHandler;
+#endif
                     }
                     hooksRegistered = true;
                 }
diff --git a/src/csharp/Grpc.Core/Internal/DefaultSslRootsOverride.cs b/src/csharp/Grpc.Core/Internal/DefaultSslRootsOverride.cs
index aa4dafd7f2..2a96e9920c 100644
--- a/src/csharp/Grpc.Core/Internal/DefaultSslRootsOverride.cs
+++ b/src/csharp/Grpc.Core/Internal/DefaultSslRootsOverride.cs
@@ -46,7 +46,7 @@ namespace Grpc.Core.Internal
     /// </summary>
     internal static class DefaultSslRootsOverride
     {
-        const string RootsPemResourceName = "Grpc.Core.Resources.roots.pem";
+        const string RootsPemResourceName = "Grpc.Core.roots.pem";
         static object staticLock = new object();
 
         /// <summary>
diff --git a/src/csharp/Grpc.Core/Internal/NativeExtension.cs b/src/csharp/Grpc.Core/Internal/NativeExtension.cs
index b45ba19c24..a6d7925816 100644
--- a/src/csharp/Grpc.Core/Internal/NativeExtension.cs
+++ b/src/csharp/Grpc.Core/Internal/NativeExtension.cs
@@ -117,8 +117,8 @@ namespace Grpc.Core.Internal
         private static string GetAssemblyPath()
         {
             var assembly = typeof(NativeExtension).GetTypeInfo().Assembly;
-#if DOTNET5_4
-            // Assembly.EscapedCodeBase does not exit under CoreCLR, but assemblies imported from a nuget package
+#if NETSTANDARD1_5
+            // Assembly.EscapedCodeBase does not exist under CoreCLR, but assemblies imported from a nuget package
             // don't seem to be shadowed by DNX-based projects at all.
             return assembly.Location;
 #else
@@ -136,7 +136,7 @@ namespace Grpc.Core.Internal
 #endif
         }
 
-#if !DOTNET5_4
+#if !NETSTANDARD1_5
         private static bool IsFileUri(string uri)
         {
             return uri.ToLowerInvariant().StartsWith(Uri.UriSchemeFile);
diff --git a/src/csharp/Grpc.Core/Internal/PlatformApis.cs b/src/csharp/Grpc.Core/Internal/PlatformApis.cs
index 5d8c44b589..15391ddc64 100644
--- a/src/csharp/Grpc.Core/Internal/PlatformApis.cs
+++ b/src/csharp/Grpc.Core/Internal/PlatformApis.cs
@@ -53,7 +53,7 @@ namespace Grpc.Core.Internal
 
         static PlatformApis()
         {
-#if DNXCORE50
+#if NETSTANDARD1_5
             isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
             isMacOSX = RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
             isWindows = RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
diff --git a/src/csharp/Grpc.Core/Internal/SafeHandleZeroIsInvalid.cs b/src/csharp/Grpc.Core/Internal/SafeHandleZeroIsInvalid.cs
index 702aea2883..230faacff6 100644
--- a/src/csharp/Grpc.Core/Internal/SafeHandleZeroIsInvalid.cs
+++ b/src/csharp/Grpc.Core/Internal/SafeHandleZeroIsInvalid.cs
@@ -39,7 +39,7 @@ namespace Grpc.Core.Internal
     /// <summary>
     /// Safe handle to wrap native objects.
     /// </summary>
-    internal abstract class SafeHandleZeroIsInvalid : SafeHandle
+    internal abstract class SafeHandleZeroIsInvalid : System.Runtime.InteropServices.SafeHandle
     {
         public SafeHandleZeroIsInvalid() : base(IntPtr.Zero, true)
         {
diff --git a/src/csharp/Grpc.Core/Metadata.cs b/src/csharp/Grpc.Core/Metadata.cs
index f73f720094..915bec146c 100644
--- a/src/csharp/Grpc.Core/Metadata.cs
+++ b/src/csharp/Grpc.Core/Metadata.cs
@@ -63,6 +63,13 @@ namespace Grpc.Core
         /// </summary>
         public static readonly Metadata Empty = new Metadata().Freeze();
 
+        /// <summary>
+        /// To be used in initial metadata to request specific compression algorithm
+        /// for given call. Direct selection of compression algorithms is an internal
+        /// feature and is not part of public API.
+        /// </summary>
+        internal const string CompressionRequestAlgorithmMetadataKey = "grpc-internal-encoding-request";
+
         readonly List<Entry> entries;
         bool readOnly;
 
diff --git a/src/csharp/Grpc.Core/project.json b/src/csharp/Grpc.Core/project.json
new file mode 100644
index 0000000000..7253107e04
--- /dev/null
+++ b/src/csharp/Grpc.Core/project.json
@@ -0,0 +1,42 @@
+{
+  "version": "0.15.0-dev",
+  "title": "gRPC C# Core",
+  "authors": [ "Google Inc." ],
+  "copyright": "Copyright 2015, Google Inc.",
+  "packOptions": {
+    "summary": "Core C# implementation of gRPC - an RPC library and framework",
+    "description": "Core C# implementation of gRPC - an RPC library and framework. See project site for more info.",
+    "owners": [ "grpc-packages" ],
+    "licenseUrl": "https://github.com/grpc/grpc/blob/master/LICENSE",
+    "projectUrl": "https://github.com/grpc/grpc",
+    "requireLicenseAcceptance": false,
+    "tags": [ "gRPC RPC Protocol HTTP/2" ],
+    "files": {
+      "build/net45/": "Grpc.Core.targets",
+      "build/native/bin/windows_x86/": "../nativelibs/windows_x86/grpc_csharp_ext.dll",
+      "build/native/bin/windows_x64/": "../nativelibs/windows_x64/grpc_csharp_ext.dll",
+      "build/native/bin/linux_x86/": "../nativelibs/linux_x86/libgrpc_csharp_ext.so",
+      "build/native/bin/linux_x64/": "../nativelibs/linux_x64/libgrpc_csharp_ext.so",
+      "build/native/bin/macosx_x86/": "../nativelibs/macosx_x86/libgrpc_csharp_ext.dylib",
+      "build/native/bin/macosx_x64/": "../nativelibs/macosx_x64/libgrpc_csharp_ext.dylib"
+    }
+  },
+  "buildOptions": {
+    "embed": [ "../../../etc/roots.pem" ]
+  },
+  "dependencies": {
+    "Ix-Async": "1.2.5"
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027",
+        "System.Threading.Thread": "4.0.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.Dotnet.sln b/src/csharp/Grpc.Dotnet.sln
new file mode 100644
index 0000000000..98b3cd54ab
--- /dev/null
+++ b/src/csharp/Grpc.Dotnet.sln
@@ -0,0 +1,100 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25123.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.Core", "Grpc.Core\Grpc.Core.xproj", "{DC9908B6-F291-4FC8-A46D-2EA2551790EC}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.Auth", "Grpc.Auth\Grpc.Auth.xproj", "{C82631ED-06D1-4458-87BC-8257D12307A8}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.Core.Tests", "Grpc.Core.Tests\Grpc.Core.Tests.xproj", "{759E23B2-FC04-4695-902D-B073CDED3599}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.Examples", "Grpc.Examples\Grpc.Examples.xproj", "{C77B792D-FC78-4CE2-9522-B40B0803C636}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.Examples.MathClient", "Grpc.Examples.MathClient\Grpc.Examples.MathClient.xproj", "{FD48DECA-1622-4173-B1D9-2101CF5E7C5F}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.Examples.MathServer", "Grpc.Examples.MathServer\Grpc.Examples.MathServer.xproj", "{58579368-5372-4E67-ACD6-9B59CB9FA698}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.Examples.Tests", "Grpc.Examples.Tests\Grpc.Examples.Tests.xproj", "{C61714A6-F633-44FB-97F4-C91F425C1D15}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.HealthCheck", "Grpc.HealthCheck\Grpc.HealthCheck.xproj", "{3BE4AD0B-2BF0-4D68-B625-F6018EF0DCFA}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.HealthCheck.Tests", "Grpc.HealthCheck.Tests\Grpc.HealthCheck.Tests.xproj", "{43DAFAC6-5343-4621-960E-A8A977EA3F0B}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.IntegrationTesting", "Grpc.IntegrationTesting\Grpc.IntegrationTesting.xproj", "{20354386-3E71-4046-A269-3BC2A06F3EC8}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.IntegrationTesting.Client", "Grpc.IntegrationTesting.Client\Grpc.IntegrationTesting.Client.xproj", "{48EA5BBE-70E2-4198-869D-D7E59C45F30D}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.IntegrationTesting.QpsWorker", "Grpc.IntegrationTesting.QpsWorker\Grpc.IntegrationTesting.QpsWorker.xproj", "{661B70D7-F56A-46E0-9B81-6227B591B5E7}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.IntegrationTesting.Server", "Grpc.IntegrationTesting.Server\Grpc.IntegrationTesting.Server.xproj", "{881F7AD1-A84E-47A2-9402-115C63C4031E}"
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Grpc.IntegrationTesting.StressClient", "Grpc.IntegrationTesting.StressClient\Grpc.IntegrationTesting.StressClient.xproj", "{0EBC910B-8867-4D3E-8686-91F34183D839}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{DC9908B6-F291-4FC8-A46D-2EA2551790EC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DC9908B6-F291-4FC8-A46D-2EA2551790EC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DC9908B6-F291-4FC8-A46D-2EA2551790EC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DC9908B6-F291-4FC8-A46D-2EA2551790EC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C82631ED-06D1-4458-87BC-8257D12307A8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C82631ED-06D1-4458-87BC-8257D12307A8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C82631ED-06D1-4458-87BC-8257D12307A8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C82631ED-06D1-4458-87BC-8257D12307A8}.Release|Any CPU.Build.0 = Release|Any CPU
+		{759E23B2-FC04-4695-902D-B073CDED3599}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{759E23B2-FC04-4695-902D-B073CDED3599}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{759E23B2-FC04-4695-902D-B073CDED3599}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{759E23B2-FC04-4695-902D-B073CDED3599}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C77B792D-FC78-4CE2-9522-B40B0803C636}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C77B792D-FC78-4CE2-9522-B40B0803C636}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C77B792D-FC78-4CE2-9522-B40B0803C636}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C77B792D-FC78-4CE2-9522-B40B0803C636}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FD48DECA-1622-4173-B1D9-2101CF5E7C5F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FD48DECA-1622-4173-B1D9-2101CF5E7C5F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FD48DECA-1622-4173-B1D9-2101CF5E7C5F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FD48DECA-1622-4173-B1D9-2101CF5E7C5F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{58579368-5372-4E67-ACD6-9B59CB9FA698}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{58579368-5372-4E67-ACD6-9B59CB9FA698}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{58579368-5372-4E67-ACD6-9B59CB9FA698}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{58579368-5372-4E67-ACD6-9B59CB9FA698}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C61714A6-F633-44FB-97F4-C91F425C1D15}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C61714A6-F633-44FB-97F4-C91F425C1D15}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C61714A6-F633-44FB-97F4-C91F425C1D15}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C61714A6-F633-44FB-97F4-C91F425C1D15}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3BE4AD0B-2BF0-4D68-B625-F6018EF0DCFA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3BE4AD0B-2BF0-4D68-B625-F6018EF0DCFA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3BE4AD0B-2BF0-4D68-B625-F6018EF0DCFA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3BE4AD0B-2BF0-4D68-B625-F6018EF0DCFA}.Release|Any CPU.Build.0 = Release|Any CPU
+		{43DAFAC6-5343-4621-960E-A8A977EA3F0B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{43DAFAC6-5343-4621-960E-A8A977EA3F0B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{43DAFAC6-5343-4621-960E-A8A977EA3F0B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{43DAFAC6-5343-4621-960E-A8A977EA3F0B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{20354386-3E71-4046-A269-3BC2A06F3EC8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{20354386-3E71-4046-A269-3BC2A06F3EC8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{20354386-3E71-4046-A269-3BC2A06F3EC8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{20354386-3E71-4046-A269-3BC2A06F3EC8}.Release|Any CPU.Build.0 = Release|Any CPU
+		{48EA5BBE-70E2-4198-869D-D7E59C45F30D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{48EA5BBE-70E2-4198-869D-D7E59C45F30D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{48EA5BBE-70E2-4198-869D-D7E59C45F30D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{48EA5BBE-70E2-4198-869D-D7E59C45F30D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{661B70D7-F56A-46E0-9B81-6227B591B5E7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{661B70D7-F56A-46E0-9B81-6227B591B5E7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{661B70D7-F56A-46E0-9B81-6227B591B5E7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{661B70D7-F56A-46E0-9B81-6227B591B5E7}.Release|Any CPU.Build.0 = Release|Any CPU
+		{881F7AD1-A84E-47A2-9402-115C63C4031E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{881F7AD1-A84E-47A2-9402-115C63C4031E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{881F7AD1-A84E-47A2-9402-115C63C4031E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{881F7AD1-A84E-47A2-9402-115C63C4031E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0EBC910B-8867-4D3E-8686-91F34183D839}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0EBC910B-8867-4D3E-8686-91F34183D839}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0EBC910B-8867-4D3E-8686-91F34183D839}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0EBC910B-8867-4D3E-8686-91F34183D839}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.csproj b/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.csproj
index 35c0646a3f..65bf236def 100644
--- a/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.csproj
+++ b/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.csproj
@@ -57,4 +57,7 @@
       <Name>Grpc.Examples</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="Grpc.Examples.MathClient.project.json" />
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.project.json b/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.xproj b/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.xproj
new file mode 100644
index 0000000000..4655bd4377
--- /dev/null
+++ b/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>fd48deca-1622-4173-b1d9-2101cf5e7c5f</ProjectGuid>
+    <RootNamespace>Grpc.Examples.MathClient</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples.MathClient/project.json b/src/csharp/Grpc.Examples.MathClient/project.json
new file mode 100644
index 0000000000..b254f15af8
--- /dev/null
+++ b/src/csharp/Grpc.Examples.MathClient/project.json
@@ -0,0 +1,53 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.Examples": {
+      "target": "project"
+    }
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.csproj b/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.csproj
index 74d79b44d9..26b42b6936 100644
--- a/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.csproj
+++ b/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.csproj
@@ -57,4 +57,7 @@
       <Name>Grpc.Examples</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="Grpc.Examples.MathServer.project.json" />
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.project.json b/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.xproj b/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.xproj
new file mode 100644
index 0000000000..38a449e8f2
--- /dev/null
+++ b/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>58579368-5372-4e67-acd6-9b59cb9fa698</ProjectGuid>
+    <RootNamespace>Grpc.Examples.MathServer</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples.MathServer/project.json b/src/csharp/Grpc.Examples.MathServer/project.json
new file mode 100644
index 0000000000..b254f15af8
--- /dev/null
+++ b/src/csharp/Grpc.Examples.MathServer/project.json
@@ -0,0 +1,53 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.Examples": {
+      "target": "project"
+    }
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
index 3fd28c6528..4c7d89309a 100644
--- a/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
+++ b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
@@ -69,6 +69,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <None Include="Grpc.Examples.Tests.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.project.json b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.xproj b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.xproj
new file mode 100644
index 0000000000..9cecd18b2e
--- /dev/null
+++ b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>c61714a6-f633-44fb-97f4-c91f425c1d15</ProjectGuid>
+    <RootNamespace>Grpc.Examples.Tests</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples.Tests/MathClientServerTests.cs b/src/csharp/Grpc.Examples.Tests/MathClientServerTests.cs
index ee11105efe..50dacc2eaa 100644
--- a/src/csharp/Grpc.Examples.Tests/MathClientServerTests.cs
+++ b/src/csharp/Grpc.Examples.Tests/MathClientServerTests.cs
@@ -62,7 +62,7 @@ namespace Math.Tests
             };
             server.Start();
             channel = new Channel(Host, server.Ports.Single().BoundPort, ChannelCredentials.Insecure);
-            client = Math.NewClient(channel);
+            client = new Math.MathClient(channel);
         }
 
         [TestFixtureTearDown]
@@ -110,7 +110,7 @@ namespace Math.Tests
             {
                 var responses = await call.ResponseStream.ToListAsync();
                 CollectionAssert.AreEqual(new List<long> { 1, 1, 2, 3, 5, 8 },
-                    responses.ConvertAll((n) => n.Num_));
+                    responses.Select((n) => n.Num_));
             }
         }
 
@@ -162,7 +162,7 @@ namespace Math.Tests
         {
             using (var call = client.Sum())
             {
-                var numbers = new List<long> { 10, 20, 30 }.ConvertAll(n => new Num { Num_ = n });
+                var numbers = new List<long> { 10, 20, 30 }.Select(n => new Num { Num_ = n });
 
                 await call.RequestStream.WriteAllAsync(numbers);
                 var result = await call.ResponseAsync;
@@ -185,8 +185,8 @@ namespace Math.Tests
                 await call.RequestStream.WriteAllAsync(divArgsList);
                 var result = await call.ResponseStream.ToListAsync();
 
-                CollectionAssert.AreEqual(new long[] { 3, 4, 3 }, result.ConvertAll((divReply) => divReply.Quotient));
-                CollectionAssert.AreEqual(new long[] { 1, 16, 1 }, result.ConvertAll((divReply) => divReply.Remainder));
+                CollectionAssert.AreEqual(new long[] { 3, 4, 3 }, result.Select((divReply) => divReply.Quotient));
+                CollectionAssert.AreEqual(new long[] { 1, 16, 1 }, result.Select((divReply) => divReply.Remainder));
             }
         }
     }
diff --git a/src/csharp/Grpc.Examples.Tests/NUnitMain.cs b/src/csharp/Grpc.Examples.Tests/NUnitMain.cs
index ea87802766..1a522cab93 100644
--- a/src/csharp/Grpc.Examples.Tests/NUnitMain.cs
+++ b/src/csharp/Grpc.Examples.Tests/NUnitMain.cs
@@ -49,7 +49,7 @@ namespace Grpc.Examples.Tests
         {
             // Make logger immune to NUnit capturing stdout and stderr to workaround https://github.com/nunit/nunit/issues/1406.
             GrpcEnvironment.SetLogger(new TextWriterLogger(Console.Error));
-#if DOTNET5_4
+#if NETSTANDARD1_5
             return new AutoRun(typeof(NUnitMain).GetTypeInfo().Assembly).Execute(args, new ExtendedTextWrapper(Console.Out), Console.In);
 #else
             return new AutoRun().Execute(args);
diff --git a/src/csharp/Grpc.Examples.Tests/project.json b/src/csharp/Grpc.Examples.Tests/project.json
new file mode 100644
index 0000000000..d2779e814f
--- /dev/null
+++ b/src/csharp/Grpc.Examples.Tests/project.json
@@ -0,0 +1,55 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.Examples": {
+      "target": "project"
+    },
+    "NUnit": "3.2.0",
+    "NUnitLite": "3.2.0-*"
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.Examples/Grpc.Examples.csproj b/src/csharp/Grpc.Examples/Grpc.Examples.csproj
index 30170ab03c..3dfa84e896 100644
--- a/src/csharp/Grpc.Examples/Grpc.Examples.csproj
+++ b/src/csharp/Grpc.Examples/Grpc.Examples.csproj
@@ -69,6 +69,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <None Include="Grpc.Examples.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples/Grpc.Examples.project.json b/src/csharp/Grpc.Examples/Grpc.Examples.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.Examples/Grpc.Examples.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.Examples/Grpc.Examples.xproj b/src/csharp/Grpc.Examples/Grpc.Examples.xproj
new file mode 100644
index 0000000000..d1d7e6d981
--- /dev/null
+++ b/src/csharp/Grpc.Examples/Grpc.Examples.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>c77b792d-fc78-4ce2-9522-b40b0803c636</ProjectGuid>
+    <RootNamespace>Grpc.Examples</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples/MathGrpc.cs b/src/csharp/Grpc.Examples/MathGrpc.cs
index 4bbefcbe01..25abc51419 100644
--- a/src/csharp/Grpc.Examples/MathGrpc.cs
+++ b/src/csharp/Grpc.Examples/MathGrpc.cs
@@ -128,17 +128,22 @@ namespace Math {
     /// <summary>Client for Math</summary>
     public class MathClient : ClientBase<MathClient>
     {
+      /// <summary>Creates a new client for Math</summary>
+      /// <param name="channel">The channel to use to make remote calls.</param>
       public MathClient(Channel channel) : base(channel)
       {
       }
+      /// <summary>Creates a new client for Math that uses a custom <c>CallInvoker</c>.</summary>
+      /// <param name="callInvoker">The callInvoker to use to make remote calls.</param>
       public MathClient(CallInvoker callInvoker) : base(callInvoker)
       {
       }
-      ///<summary>Protected parameterless constructor to allow creation of test doubles.</summary>
+      /// <summary>Protected parameterless constructor to allow creation of test doubles.</summary>
       protected MathClient() : base()
       {
       }
-      ///<summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <param name="configuration">The client configuration.</param>
       protected MathClient(ClientBaseConfiguration configuration) : base(configuration)
       {
       }
@@ -235,12 +240,6 @@ namespace Math {
       }
     }
 
-    /// <summary>Creates a new client for Math</summary>
-    public static MathClient NewClient(Channel channel)
-    {
-      return new MathClient(channel);
-    }
-
     /// <summary>Creates service definition that can be registered with a server</summary>
     public static ServerServiceDefinition BindService(MathBase serviceImpl)
     {
diff --git a/src/csharp/Grpc.Examples/project.json b/src/csharp/Grpc.Examples/project.json
new file mode 100644
index 0000000000..7d3f4dcbb1
--- /dev/null
+++ b/src/csharp/Grpc.Examples/project.json
@@ -0,0 +1,27 @@
+{
+  "buildOptions": {
+  },
+
+  "dependencies": {
+    "Grpc.Core": {
+      "target": "project"
+    },
+    "Google.Protobuf": "3.0.0-beta3"
+  },
+  "frameworks": {
+    "net45": {
+      "frameworkAssemblies": {
+        "System.Runtime": "",
+        "System.IO": ""
+      }
+    },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.csproj b/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.csproj
index a5ee4fdb46..aefacfbcc0 100644
--- a/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.csproj
+++ b/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.csproj
@@ -74,6 +74,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <None Include="Grpc.HealthCheck.Tests.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.project.json b/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.xproj b/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.xproj
new file mode 100644
index 0000000000..724c5b2a16
--- /dev/null
+++ b/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>43dafac6-5343-4621-960e-a8a977ea3f0b</ProjectGuid>
+    <RootNamespace>Grpc.HealthCheck.Tests</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.HealthCheck.Tests/HealthClientServerTest.cs b/src/csharp/Grpc.HealthCheck.Tests/HealthClientServerTest.cs
index 070674bae9..25a58fb386 100644
--- a/src/csharp/Grpc.HealthCheck.Tests/HealthClientServerTest.cs
+++ b/src/csharp/Grpc.HealthCheck.Tests/HealthClientServerTest.cs
@@ -65,7 +65,7 @@ namespace Grpc.HealthCheck.Tests
             server.Start();
             channel = new Channel(Host, server.Ports.Single().BoundPort, ChannelCredentials.Insecure);
 
-            client = Grpc.Health.V1.Health.NewClient(channel);
+            client = new Grpc.Health.V1.Health.HealthClient(channel);
         }
 
         [TestFixtureTearDown]
diff --git a/src/csharp/Grpc.HealthCheck.Tests/NUnitMain.cs b/src/csharp/Grpc.HealthCheck.Tests/NUnitMain.cs
index 0820523f35..44634671ce 100644
--- a/src/csharp/Grpc.HealthCheck.Tests/NUnitMain.cs
+++ b/src/csharp/Grpc.HealthCheck.Tests/NUnitMain.cs
@@ -49,7 +49,7 @@ namespace Grpc.HealthCheck.Tests
         {
             // Make logger immune to NUnit capturing stdout and stderr to workaround https://github.com/nunit/nunit/issues/1406.
             GrpcEnvironment.SetLogger(new TextWriterLogger(Console.Error));
-#if DOTNET5_4
+#if NETSTANDARD1_5
             return new AutoRun(typeof(NUnitMain).GetTypeInfo().Assembly).Execute(args, new ExtendedTextWrapper(Console.Out), Console.In);
 #else
             return new AutoRun().Execute(args);
diff --git a/src/csharp/Grpc.HealthCheck.Tests/project.json b/src/csharp/Grpc.HealthCheck.Tests/project.json
new file mode 100644
index 0000000000..74599bd4b9
--- /dev/null
+++ b/src/csharp/Grpc.HealthCheck.Tests/project.json
@@ -0,0 +1,55 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.HealthCheck": {
+      "target": "project"
+    },
+    "NUnit": "3.2.0",
+    "NUnitLite": "3.2.0-*"
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
index 2697b74f59..7db8b2d38e 100644
--- a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
+++ b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
@@ -65,6 +65,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="Grpc.HealthCheck.nuspec" />
+    <None Include="Grpc.HealthCheck.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.project.json b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.xproj b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.xproj
new file mode 100644
index 0000000000..5806a7af97
--- /dev/null
+++ b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>3be4ad0b-2bf0-4d68-b625-f6018ef0dcfa</ProjectGuid>
+    <RootNamespace>Grpc.HealthCheck</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.HealthCheck/HealthGrpc.cs b/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
index d0ade7d02b..43eea0f22f 100644
--- a/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
+++ b/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
@@ -71,17 +71,22 @@ namespace Grpc.Health.V1 {
     /// <summary>Client for Health</summary>
     public class HealthClient : ClientBase<HealthClient>
     {
+      /// <summary>Creates a new client for Health</summary>
+      /// <param name="channel">The channel to use to make remote calls.</param>
       public HealthClient(Channel channel) : base(channel)
       {
       }
+      /// <summary>Creates a new client for Health that uses a custom <c>CallInvoker</c>.</summary>
+      /// <param name="callInvoker">The callInvoker to use to make remote calls.</param>
       public HealthClient(CallInvoker callInvoker) : base(callInvoker)
       {
       }
-      ///<summary>Protected parameterless constructor to allow creation of test doubles.</summary>
+      /// <summary>Protected parameterless constructor to allow creation of test doubles.</summary>
       protected HealthClient() : base()
       {
       }
-      ///<summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <param name="configuration">The client configuration.</param>
       protected HealthClient(ClientBaseConfiguration configuration) : base(configuration)
       {
       }
@@ -108,12 +113,6 @@ namespace Grpc.Health.V1 {
       }
     }
 
-    /// <summary>Creates a new client for Health</summary>
-    public static HealthClient NewClient(Channel channel)
-    {
-      return new HealthClient(channel);
-    }
-
     /// <summary>Creates service definition that can be registered with a server</summary>
     public static ServerServiceDefinition BindService(HealthBase serviceImpl)
     {
diff --git a/src/csharp/Grpc.HealthCheck/project.json b/src/csharp/Grpc.HealthCheck/project.json
new file mode 100644
index 0000000000..eb57608957
--- /dev/null
+++ b/src/csharp/Grpc.HealthCheck/project.json
@@ -0,0 +1,35 @@
+{
+  "version": "0.15.0-dev",
+  "title": "gRPC C# Healthchecking",
+  "authors": [ "Google Inc." ],
+  "copyright": "Copyright 2015, Google Inc.",
+  "packOptions": {
+    "summary": "Implementation of gRPC health service",
+    "description": "Example implementation of grpc.health.v1 service that can be used for health-checking.",
+    "owners": [ "grpc-packages" ],
+    "licenseUrl": "https://github.com/grpc/grpc/blob/master/LICENSE",
+    "projectUrl": "https://github.com/grpc/grpc",
+    "requireLicenseAcceptance": false,
+    "tags": [ "gRPC health check" ]
+  },
+  "dependencies": {
+    "Grpc.Core": "0.15.0-dev",
+    "Google.Protobuf": "3.0.0-beta3"
+  },
+  "frameworks": {
+    "net45": {
+      "frameworkAssemblies": {
+        "System.Runtime": "",
+        "System.IO": ""
+      }
+    },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.csproj b/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.csproj
index 339a754c02..91fb3ce5bc 100644
--- a/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.csproj
+++ b/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.csproj
@@ -83,6 +83,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <None Include="Grpc.IntegrationTesting.Client.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.project.json b/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.xproj b/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.xproj
new file mode 100644
index 0000000000..7f456cfaef
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>48ea5bbe-70e2-4198-869d-d7e59c45f30d</ProjectGuid>
+    <RootNamespace>Grpc.IntegrationTesting.Client</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.Client/project.json b/src/csharp/Grpc.IntegrationTesting.Client/project.json
new file mode 100644
index 0000000000..e5ba04d717
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.Client/project.json
@@ -0,0 +1,56 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.IntegrationTesting": {
+      "target": "project"
+    }
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45",
+        "net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.csproj b/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.csproj
index 0dc2751b04..dda26a6892 100644
--- a/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.csproj
+++ b/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.csproj
@@ -59,5 +59,6 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />
+    <None Include="Grpc.IntegrationTesting.QpsWorker.project.json" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.project.json b/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.xproj b/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.xproj
new file mode 100644
index 0000000000..15bec443d6
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>661b70d7-f56a-46e0-9b81-6227b591b5e7</ProjectGuid>
+    <RootNamespace>Grpc.IntegrationTesting.QpsWorker</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json b/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json
new file mode 100644
index 0000000000..e5ba04d717
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json
@@ -0,0 +1,56 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.IntegrationTesting": {
+      "target": "project"
+    }
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45",
+        "net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.csproj b/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.csproj
index 27a5650308..f73d99dbd1 100644
--- a/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.csproj
+++ b/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.csproj
@@ -83,6 +83,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <None Include="Grpc.IntegrationTesting.Server.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.project.json b/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.xproj b/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.xproj
new file mode 100644
index 0000000000..689eb0b842
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>881f7ad1-a84e-47a2-9402-115c63c4031e</ProjectGuid>
+    <RootNamespace>Grpc.IntegrationTesting.Server</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.Server/project.json b/src/csharp/Grpc.IntegrationTesting.Server/project.json
new file mode 100644
index 0000000000..e5ba04d717
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.Server/project.json
@@ -0,0 +1,56 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.IntegrationTesting": {
+      "target": "project"
+    }
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45",
+        "net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.csproj b/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.csproj
index d6eba74289..8bd3d78913 100644
--- a/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.csproj
+++ b/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -57,4 +57,7 @@
       <Name>Grpc.IntegrationTesting</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="Grpc.IntegrationTesting.StressClient.project.json" />
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.project.json b/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.xproj b/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.xproj
new file mode 100644
index 0000000000..2f4fdcbb47
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.StressClient/Grpc.IntegrationTesting.StressClient.xproj
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DotNet\Microsoft.DotNet.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>0ebc910b-8867-4d3e-8686-91f34183d839</ProjectGuid>
+    <RootNamespace>Grpc.IntegrationTesting.StressClient</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">.\obj</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DotNet\Microsoft.DotNet.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.StressClient/project.json b/src/csharp/Grpc.IntegrationTesting.StressClient/project.json
new file mode 100644
index 0000000000..e5ba04d717
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting.StressClient/project.json
@@ -0,0 +1,56 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.IntegrationTesting": {
+      "target": "project"
+    }
+  },
+  "frameworks": {
+    "net45": { },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45",
+        "net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting/ClientRunners.cs b/src/csharp/Grpc.IntegrationTesting/ClientRunners.cs
index 39b9ae08e6..b9c0fe6d0d 100644
--- a/src/csharp/Grpc.IntegrationTesting/ClientRunners.cs
+++ b/src/csharp/Grpc.IntegrationTesting/ClientRunners.cs
@@ -211,7 +211,7 @@ namespace Grpc.IntegrationTesting
 
             bool profilerReset = false;
 
-            var client = BenchmarkService.NewClient(channel);
+            var client = new BenchmarkService.BenchmarkServiceClient(channel);
             var request = CreateSimpleRequest();
             var stopwatch = new Stopwatch();
 
@@ -237,7 +237,7 @@ namespace Grpc.IntegrationTesting
 
         private async Task RunUnaryAsync(Channel channel, IInterarrivalTimer timer)
         {
-            var client = BenchmarkService.NewClient(channel);
+            var client = new BenchmarkService.BenchmarkServiceClient(channel);
             var request = CreateSimpleRequest();
             var stopwatch = new Stopwatch();
 
@@ -256,7 +256,7 @@ namespace Grpc.IntegrationTesting
 
         private async Task RunStreamingPingPongAsync(Channel channel, IInterarrivalTimer timer)
         {
-            var client = BenchmarkService.NewClient(channel);
+            var client = new BenchmarkService.BenchmarkServiceClient(channel);
             var request = CreateSimpleRequest();
             var stopwatch = new Stopwatch();
 
diff --git a/src/csharp/Grpc.IntegrationTesting/GeneratedClientTest.cs b/src/csharp/Grpc.IntegrationTesting/GeneratedClientTest.cs
index 37786b6c30..eb7b55a286 100644
--- a/src/csharp/Grpc.IntegrationTesting/GeneratedClientTest.cs
+++ b/src/csharp/Grpc.IntegrationTesting/GeneratedClientTest.cs
@@ -40,7 +40,6 @@ using System.Threading.Tasks;
 using Grpc.Core;
 using Grpc.Core.Utils;
 using Grpc.Testing;
-using Moq;
 using NUnit.Framework;
 
 namespace Grpc.IntegrationTesting
@@ -49,14 +48,16 @@ namespace Grpc.IntegrationTesting
     {
         TestService.TestServiceClient unimplementedClient = new UnimplementedTestServiceClient();
 
+        // TODO: replace Moq by some mocking library with CoreCLR support.
+#if !NETSTANDARD1_5
         [Test]
         public void ExpandedParamOverloadCanBeMocked()
         {
             var expected = new SimpleResponse();
 
-            var mockClient = new Mock<TestService.TestServiceClient>();
+            var mockClient = new Moq.Mock<TestService.TestServiceClient>();
             // mocking is relatively clumsy because one needs to specify value for all the optional params.
-            mockClient.Setup(m => m.UnaryCall(It.IsAny<SimpleRequest>(), null, null, CancellationToken.None)).Returns(expected);
+            mockClient.Setup(m => m.UnaryCall(Moq.It.IsAny<SimpleRequest>(), null, null, CancellationToken.None)).Returns(expected);
 
             Assert.AreSame(expected, mockClient.Object.UnaryCall(new SimpleRequest()));
         }
@@ -66,11 +67,12 @@ namespace Grpc.IntegrationTesting
         {
             var expected = new SimpleResponse();
 
-            var mockClient = new Mock<TestService.TestServiceClient>();
-            mockClient.Setup(m => m.UnaryCall(It.IsAny<SimpleRequest>(), It.IsAny<CallOptions>())).Returns(expected);
+            var mockClient = new Moq.Mock<TestService.TestServiceClient>();
+            mockClient.Setup(m => m.UnaryCall(Moq.It.IsAny<SimpleRequest>(), Moq.It.IsAny<CallOptions>())).Returns(expected);
 
             Assert.AreSame(expected, mockClient.Object.UnaryCall(new SimpleRequest(), new CallOptions()));
         }
+#endif
 
         [Test]
         public void DefaultMethodStubThrows_UnaryCall()
diff --git a/src/csharp/Grpc.IntegrationTesting/GeneratedServiceBaseTest.cs b/src/csharp/Grpc.IntegrationTesting/GeneratedServiceBaseTest.cs
index 5fd0e14e78..4216dc1d6b 100644
--- a/src/csharp/Grpc.IntegrationTesting/GeneratedServiceBaseTest.cs
+++ b/src/csharp/Grpc.IntegrationTesting/GeneratedServiceBaseTest.cs
@@ -40,7 +40,6 @@ using System.Threading.Tasks;
 using Grpc.Core;
 using Grpc.Core.Utils;
 using Grpc.Testing;
-using Moq;
 using NUnit.Framework;
 
 namespace Grpc.IntegrationTesting
@@ -62,7 +61,7 @@ namespace Grpc.IntegrationTesting
             };
             server.Start();
             channel = new Channel(Host, server.Ports.Single().BoundPort, ChannelCredentials.Insecure);
-            client = TestService.NewClient(channel);
+            client = new TestService.TestServiceClient(channel);
         }
 
         [TearDown]
diff --git a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
index 0089049408..3a0764230d 100644
--- a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
+++ b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
@@ -129,6 +129,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <None Include="Grpc.IntegrationTesting.project.json" />
     <None Include="packages.config">
       <SubType>Designer</SubType>
     </None>
diff --git a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.project.json b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.project.json
new file mode 100644
index 0000000000..c2f5bcb163
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.project.json
@@ -0,0 +1,8 @@
+{
+  "frameworks": {
+    "net45": { }
+  },
+  "runtimes": {
+    "win": { }
+  }
+}
diff --git a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.xproj b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.xproj
new file mode 100644
index 0000000000..357300ecb9
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.xproj
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0.25123" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0.25123</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>20354386-3e71-4046-a269-3bc2a06f3ec8</ProjectGuid>
+    <RootNamespace>Grpc.IntegrationTesting</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+  </PropertyGroup>
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
index aea40afee2..e27fe5b3d8 100644
--- a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
+++ b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
@@ -145,16 +145,26 @@ namespace Grpc.IntegrationTesting
 
             if (options.TestCase == "jwt_token_creds")
             {
+#if !NETSTANDARD1_5
                 var googleCredential = await GoogleCredential.GetApplicationDefaultAsync();
                 Assert.IsTrue(googleCredential.IsCreateScopedRequired);
                 credentials = ChannelCredentials.Create(credentials, googleCredential.ToCallCredentials());
+#else
+                // TODO(jtattermusch): implement this
+                throw new NotImplementedException("Not supported on CoreCLR yet");
+#endif
             }
 
             if (options.TestCase == "compute_engine_creds")
             {
+#if !NETSTANDARD1_5
                 var googleCredential = await GoogleCredential.GetApplicationDefaultAsync();
                 Assert.IsFalse(googleCredential.IsCreateScopedRequired);
                 credentials = ChannelCredentials.Create(credentials, googleCredential.ToCallCredentials());
+#else
+                // TODO(jtattermusch): implement this
+                throw new NotImplementedException("Not supported on CoreCLR yet");
+#endif
             }
             return credentials;
         }
@@ -212,6 +222,12 @@ namespace Grpc.IntegrationTesting
                 case "unimplemented_method":
                     RunUnimplementedMethod(new UnimplementedService.UnimplementedServiceClient(channel));
                     break;
+                case "client_compressed_unary":
+                    RunClientCompressedUnary(client);
+                    break;
+                case "client_compressed_streaming":
+                    await RunClientCompressedStreamingAsync(client);
+                    break;
                 default:
                     throw new ArgumentException("Unknown test case " + options.TestCase);
             }
@@ -230,13 +246,11 @@ namespace Grpc.IntegrationTesting
             Console.WriteLine("running large_unary");
             var request = new SimpleRequest
             {
-                ResponseType = PayloadType.Compressable,
                 ResponseSize = 314159,
                 Payload = CreateZerosPayload(271828)
             };
             var response = client.UnaryCall(request);
 
-            Assert.AreEqual(PayloadType.Compressable, response.Payload.Type);
             Assert.AreEqual(314159, response.Payload.Body.Length);
             Console.WriteLine("Passed!");
         }
@@ -245,7 +259,7 @@ namespace Grpc.IntegrationTesting
         {
             Console.WriteLine("running client_streaming");
 
-            var bodySizes = new List<int> { 27182, 8, 1828, 45904 }.ConvertAll((size) => new StreamingInputCallRequest { Payload = CreateZerosPayload(size) });
+            var bodySizes = new List<int> { 27182, 8, 1828, 45904 }.Select((size) => new StreamingInputCallRequest { Payload = CreateZerosPayload(size) });
 
             using (var call = client.StreamingInputCall())
             {
@@ -265,18 +279,13 @@ namespace Grpc.IntegrationTesting
 
             var request = new StreamingOutputCallRequest
             {
-                ResponseType = PayloadType.Compressable,
-                ResponseParameters = { bodySizes.ConvertAll((size) => new ResponseParameters { Size = size }) }
+                ResponseParameters = { bodySizes.Select((size) => new ResponseParameters { Size = size }) }
             };
 
             using (var call = client.StreamingOutputCall(request))
             {
                 var responseList = await call.ResponseStream.ToListAsync();
-                foreach (var res in responseList)
-                {
-                    Assert.AreEqual(PayloadType.Compressable, res.Payload.Type);
-                }
-                CollectionAssert.AreEqual(bodySizes, responseList.ConvertAll((item) => item.Payload.Body.Length));
+                CollectionAssert.AreEqual(bodySizes, responseList.Select((item) => item.Payload.Body.Length));
             }
             Console.WriteLine("Passed!");
         }
@@ -289,46 +298,38 @@ namespace Grpc.IntegrationTesting
             {
                 await call.RequestStream.WriteAsync(new StreamingOutputCallRequest
                 {
-                    ResponseType = PayloadType.Compressable,
                     ResponseParameters = { new ResponseParameters { Size = 31415 } },
                     Payload = CreateZerosPayload(27182)
                 });
 
                 Assert.IsTrue(await call.ResponseStream.MoveNext());
-                Assert.AreEqual(PayloadType.Compressable, call.ResponseStream.Current.Payload.Type);
                 Assert.AreEqual(31415, call.ResponseStream.Current.Payload.Body.Length);
 
                 await call.RequestStream.WriteAsync(new StreamingOutputCallRequest
                 {
-                    ResponseType = PayloadType.Compressable,
                     ResponseParameters = { new ResponseParameters { Size = 9 } },
                     Payload = CreateZerosPayload(8)
                 });
 
                 Assert.IsTrue(await call.ResponseStream.MoveNext());
-                Assert.AreEqual(PayloadType.Compressable, call.ResponseStream.Current.Payload.Type);
                 Assert.AreEqual(9, call.ResponseStream.Current.Payload.Body.Length);
 
                 await call.RequestStream.WriteAsync(new StreamingOutputCallRequest
                 {
-                    ResponseType = PayloadType.Compressable,
                     ResponseParameters = { new ResponseParameters { Size = 2653 } },
                     Payload = CreateZerosPayload(1828)
                 });
 
                 Assert.IsTrue(await call.ResponseStream.MoveNext());
-                Assert.AreEqual(PayloadType.Compressable, call.ResponseStream.Current.Payload.Type);
                 Assert.AreEqual(2653, call.ResponseStream.Current.Payload.Body.Length);
 
                 await call.RequestStream.WriteAsync(new StreamingOutputCallRequest
                 {
-                    ResponseType = PayloadType.Compressable,
                     ResponseParameters = { new ResponseParameters { Size = 58979 } },
                     Payload = CreateZerosPayload(45904)
                 });
 
                 Assert.IsTrue(await call.ResponseStream.MoveNext());
-                Assert.AreEqual(PayloadType.Compressable, call.ResponseStream.Current.Payload.Type);
                 Assert.AreEqual(58979, call.ResponseStream.Current.Payload.Body.Length);
 
                 await call.RequestStream.CompleteAsync();
@@ -357,7 +358,6 @@ namespace Grpc.IntegrationTesting
 
             var request = new SimpleRequest
             {
-                ResponseType = PayloadType.Compressable,
                 ResponseSize = 314159,
                 Payload = CreateZerosPayload(271828),
                 FillUsername = true,
@@ -367,7 +367,6 @@ namespace Grpc.IntegrationTesting
             // not setting credentials here because they were set on channel already
             var response = client.UnaryCall(request);
 
-            Assert.AreEqual(PayloadType.Compressable, response.Payload.Type);
             Assert.AreEqual(314159, response.Payload.Body.Length);
             Assert.False(string.IsNullOrEmpty(response.OauthScope));
             Assert.True(oauthScope.Contains(response.OauthScope));
@@ -381,7 +380,6 @@ namespace Grpc.IntegrationTesting
            
             var request = new SimpleRequest
             {
-                ResponseType = PayloadType.Compressable,
                 ResponseSize = 314159,
                 Payload = CreateZerosPayload(271828),
                 FillUsername = true,
@@ -390,7 +388,6 @@ namespace Grpc.IntegrationTesting
             // not setting credentials here because they were set on channel already
             var response = client.UnaryCall(request);
 
-            Assert.AreEqual(PayloadType.Compressable, response.Payload.Type);
             Assert.AreEqual(314159, response.Payload.Body.Length);
             Assert.AreEqual(GetEmailFromServiceAccountFile(), response.Username);
             Console.WriteLine("Passed!");
@@ -398,6 +395,7 @@ namespace Grpc.IntegrationTesting
 
         public static async Task RunOAuth2AuthTokenAsync(TestService.TestServiceClient client, string oauthScope)
         {
+#if !NETSTANDARD1_5
             Console.WriteLine("running oauth2_auth_token");
             ITokenAccess credential = (await GoogleCredential.GetApplicationDefaultAsync()).CreateScoped(new[] { oauthScope });
             string oauth2Token = await credential.GetAccessTokenForRequestAsync();
@@ -415,10 +413,15 @@ namespace Grpc.IntegrationTesting
             Assert.True(oauthScope.Contains(response.OauthScope));
             Assert.AreEqual(GetEmailFromServiceAccountFile(), response.Username);
             Console.WriteLine("Passed!");
+#else
+            // TODO(jtattermusch): implement this
+            throw new NotImplementedException("Not supported on CoreCLR yet");
+#endif
         }
 
         public static async Task RunPerRpcCredsAsync(TestService.TestServiceClient client, string oauthScope)
         {
+#if !NETSTANDARD1_5
             Console.WriteLine("running per_rpc_creds");
             ITokenAccess googleCredential = await GoogleCredential.GetApplicationDefaultAsync();
 
@@ -432,6 +435,10 @@ namespace Grpc.IntegrationTesting
 
             Assert.AreEqual(GetEmailFromServiceAccountFile(), response.Username);
             Console.WriteLine("Passed!");
+#else
+            // TODO(jtattermusch): implement this
+            throw new NotImplementedException("Not supported on CoreCLR yet");
+#endif
         }
 
         public static async Task RunCancelAfterBeginAsync(TestService.TestServiceClient client)
@@ -460,13 +467,11 @@ namespace Grpc.IntegrationTesting
             {
                 await call.RequestStream.WriteAsync(new StreamingOutputCallRequest
                 {
-                    ResponseType = PayloadType.Compressable,
                     ResponseParameters = { new ResponseParameters { Size = 31415 } },
                     Payload = CreateZerosPayload(27182)
                 });
 
                 Assert.IsTrue(await call.ResponseStream.MoveNext());
-                Assert.AreEqual(PayloadType.Compressable, call.ResponseStream.Current.Payload.Type);
                 Assert.AreEqual(31415, call.ResponseStream.Current.Payload.Body.Length);
 
                 cts.Cancel();
@@ -526,7 +531,6 @@ namespace Grpc.IntegrationTesting
                 // step 1: test unary call
                 var request = new SimpleRequest
                 {
-                    ResponseType = PayloadType.Compressable,
                     ResponseSize = 314159,
                     Payload = CreateZerosPayload(271828)
                 };
@@ -545,7 +549,6 @@ namespace Grpc.IntegrationTesting
                 // step 2: test full duplex call
                 var request = new StreamingOutputCallRequest
                 {
-                    ResponseType = PayloadType.Compressable,
                     ResponseParameters = { new ResponseParameters { Size = 31415 } },
                     Payload = CreateZerosPayload(27182)
                 };
@@ -618,21 +621,127 @@ namespace Grpc.IntegrationTesting
             Console.WriteLine("Passed!");
         }
 
+        public static void RunClientCompressedUnary(TestService.TestServiceClient client)
+        {
+            Console.WriteLine("running client_compressed_unary");
+            var probeRequest = new SimpleRequest
+            {
+                ExpectCompressed = new BoolValue
+                {
+                    Value = true  // lie about compression
+                },
+                ResponseSize = 314159,
+                Payload = CreateZerosPayload(271828)
+            };
+            var e = Assert.Throws<RpcException>(() => client.UnaryCall(probeRequest, CreateClientCompressionMetadata(false)));
+            Assert.AreEqual(StatusCode.InvalidArgument, e.Status.StatusCode);
+
+            var compressedRequest = new SimpleRequest
+            {
+                ExpectCompressed = new BoolValue
+                {
+                    Value = true
+                },
+                ResponseSize = 314159,
+                Payload = CreateZerosPayload(271828)
+            };
+            var response1 = client.UnaryCall(compressedRequest, CreateClientCompressionMetadata(true));
+            Assert.AreEqual(314159, response1.Payload.Body.Length);
+
+            var uncompressedRequest = new SimpleRequest
+            {
+                ExpectCompressed = new BoolValue
+                {
+                    Value = false
+                },
+                ResponseSize = 314159,
+                Payload = CreateZerosPayload(271828)
+            };
+            var response2 = client.UnaryCall(uncompressedRequest, CreateClientCompressionMetadata(false));
+            Assert.AreEqual(314159, response2.Payload.Body.Length);
+
+            Console.WriteLine("Passed!");
+        }
+
+        public static async Task RunClientCompressedStreamingAsync(TestService.TestServiceClient client)
+        {
+            Console.WriteLine("running client_compressed_streaming");
+            try
+            {
+                var probeCall = client.StreamingInputCall(CreateClientCompressionMetadata(false));
+                await probeCall.RequestStream.WriteAsync(new StreamingInputCallRequest
+                {
+                    ExpectCompressed = new BoolValue
+                    {
+                        Value = true
+                    },
+                    Payload = CreateZerosPayload(27182)
+                });
+
+                // cannot use Assert.ThrowsAsync because it uses Task.Wait and would deadlock.
+                await probeCall;
+                Assert.Fail();
+            }
+            catch (RpcException e)
+            {
+                Assert.AreEqual(StatusCode.InvalidArgument, e.Status.StatusCode);
+            }
+
+            var call = client.StreamingInputCall(CreateClientCompressionMetadata(true));
+            await call.RequestStream.WriteAsync(new StreamingInputCallRequest
+            {
+                ExpectCompressed = new BoolValue
+                {
+                    Value = true
+                },
+                Payload = CreateZerosPayload(27182)
+            });
+
+            call.RequestStream.WriteOptions = new WriteOptions(WriteFlags.NoCompress);
+            await call.RequestStream.WriteAsync(new StreamingInputCallRequest
+            {
+                ExpectCompressed = new BoolValue
+                {
+                    Value = false
+                },
+                Payload = CreateZerosPayload(45904)
+            });
+            await call.RequestStream.CompleteAsync();
+
+            var response = await call.ResponseAsync;
+            Assert.AreEqual(73086, response.AggregatedPayloadSize);
+
+            Console.WriteLine("Passed!");
+        }
+
         private static Payload CreateZerosPayload(int size)
         {
             return new Payload { Body = ByteString.CopyFrom(new byte[size]) };
         }
 
+        private static Metadata CreateClientCompressionMetadata(bool compressed)
+        {
+            var algorithmName = compressed ? "gzip" : "identity";
+            return new Metadata
+            {
+                { new Metadata.Entry(Metadata.CompressionRequestAlgorithmMetadataKey, algorithmName) }
+            };
+        }
+
         // extracts the client_email field from service account file used for auth test cases
         private static string GetEmailFromServiceAccountFile()
         {
+#if !NETSTANDARD1_5
             string keyFile = Environment.GetEnvironmentVariable("GOOGLE_APPLICATION_CREDENTIALS");
             Assert.IsNotNull(keyFile);
-
             var jobject = JObject.Parse(File.ReadAllText(keyFile));
             string email = jobject.GetValue("client_email").Value<string>();
             Assert.IsTrue(email.Length > 0);  // spec requires nonempty client email.
             return email;
+#else
+            // TODO(jtattermusch): implement this
+            throw new NotImplementedException("Not supported on CoreCLR yet");
+#endif
         }
 
         private static Metadata CreateTestMetadata()
diff --git a/src/csharp/Grpc.IntegrationTesting/InteropClientServerTest.cs b/src/csharp/Grpc.IntegrationTesting/InteropClientServerTest.cs
index 4ee1ff5ec8..f907f630da 100644
--- a/src/csharp/Grpc.IntegrationTesting/InteropClientServerTest.cs
+++ b/src/csharp/Grpc.IntegrationTesting/InteropClientServerTest.cs
@@ -69,7 +69,7 @@ namespace Grpc.IntegrationTesting
             };
             int port = server.Ports.Single().BoundPort;
             channel = new Channel(Host, port, TestCredentials.CreateSslCredentials(), options);
-            client = TestService.NewClient(channel);
+            client = new TestService.TestServiceClient(channel);
         }
 
         [TestFixtureTearDown]
@@ -148,7 +148,7 @@ namespace Grpc.IntegrationTesting
         [Test]
         public void UnimplementedMethod()
         {
-            InteropClient.RunUnimplementedMethod(UnimplementedService.NewClient(channel));
+            InteropClient.RunUnimplementedMethod(new UnimplementedService.UnimplementedServiceClient(channel));
         }
     }
 }
diff --git a/src/csharp/Grpc.IntegrationTesting/Messages.cs b/src/csharp/Grpc.IntegrationTesting/Messages.cs
index d42501aa5b..1240db128b 100644
--- a/src/csharp/Grpc.IntegrationTesting/Messages.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Messages.cs
@@ -24,46 +24,48 @@ namespace Grpc.Testing {
       byte[] descriptorData = global::System.Convert.FromBase64String(
           string.Concat(
             "CiVzcmMvcHJvdG8vZ3JwYy90ZXN0aW5nL21lc3NhZ2VzLnByb3RvEgxncnBj",
-            "LnRlc3RpbmciQAoHUGF5bG9hZBInCgR0eXBlGAEgASgOMhkuZ3JwYy50ZXN0",
-            "aW5nLlBheWxvYWRUeXBlEgwKBGJvZHkYAiABKAwiKwoKRWNob1N0YXR1cxIM",
-            "CgRjb2RlGAEgASgFEg8KB21lc3NhZ2UYAiABKAkioQIKDVNpbXBsZVJlcXVl",
-            "c3QSMAoNcmVzcG9uc2VfdHlwZRgBIAEoDjIZLmdycGMudGVzdGluZy5QYXls",
-            "b2FkVHlwZRIVCg1yZXNwb25zZV9zaXplGAIgASgFEiYKB3BheWxvYWQYAyAB",
-            "KAsyFS5ncnBjLnRlc3RpbmcuUGF5bG9hZBIVCg1maWxsX3VzZXJuYW1lGAQg",
-            "ASgIEhgKEGZpbGxfb2F1dGhfc2NvcGUYBSABKAgSOwoUcmVzcG9uc2VfY29t",
-            "cHJlc3Npb24YBiABKA4yHS5ncnBjLnRlc3RpbmcuQ29tcHJlc3Npb25UeXBl",
-            "EjEKD3Jlc3BvbnNlX3N0YXR1cxgHIAEoCzIYLmdycGMudGVzdGluZy5FY2hv",
-            "U3RhdHVzIl8KDlNpbXBsZVJlc3BvbnNlEiYKB3BheWxvYWQYASABKAsyFS5n",
-            "cnBjLnRlc3RpbmcuUGF5bG9hZBIQCgh1c2VybmFtZRgCIAEoCRITCgtvYXV0",
-            "aF9zY29wZRgDIAEoCSJDChlTdHJlYW1pbmdJbnB1dENhbGxSZXF1ZXN0EiYK",
-            "B3BheWxvYWQYASABKAsyFS5ncnBjLnRlc3RpbmcuUGF5bG9hZCI9ChpTdHJl",
-            "YW1pbmdJbnB1dENhbGxSZXNwb25zZRIfChdhZ2dyZWdhdGVkX3BheWxvYWRf",
-            "c2l6ZRgBIAEoBSI3ChJSZXNwb25zZVBhcmFtZXRlcnMSDAoEc2l6ZRgBIAEo",
-            "BRITCgtpbnRlcnZhbF91cxgCIAEoBSKlAgoaU3RyZWFtaW5nT3V0cHV0Q2Fs",
-            "bFJlcXVlc3QSMAoNcmVzcG9uc2VfdHlwZRgBIAEoDjIZLmdycGMudGVzdGlu",
-            "Zy5QYXlsb2FkVHlwZRI9ChNyZXNwb25zZV9wYXJhbWV0ZXJzGAIgAygLMiAu",
-            "Z3JwYy50ZXN0aW5nLlJlc3BvbnNlUGFyYW1ldGVycxImCgdwYXlsb2FkGAMg",
-            "ASgLMhUuZ3JwYy50ZXN0aW5nLlBheWxvYWQSOwoUcmVzcG9uc2VfY29tcHJl",
-            "c3Npb24YBiABKA4yHS5ncnBjLnRlc3RpbmcuQ29tcHJlc3Npb25UeXBlEjEK",
-            "D3Jlc3BvbnNlX3N0YXR1cxgHIAEoCzIYLmdycGMudGVzdGluZy5FY2hvU3Rh",
-            "dHVzIkUKG1N0cmVhbWluZ091dHB1dENhbGxSZXNwb25zZRImCgdwYXlsb2Fk",
-            "GAEgASgLMhUuZ3JwYy50ZXN0aW5nLlBheWxvYWQiMwoPUmVjb25uZWN0UGFy",
-            "YW1zEiAKGG1heF9yZWNvbm5lY3RfYmFja29mZl9tcxgBIAEoBSIzCg1SZWNv",
-            "bm5lY3RJbmZvEg4KBnBhc3NlZBgBIAEoCBISCgpiYWNrb2ZmX21zGAIgAygF",
-            "Kj8KC1BheWxvYWRUeXBlEhAKDENPTVBSRVNTQUJMRRAAEhIKDlVOQ09NUFJF",
-            "U1NBQkxFEAESCgoGUkFORE9NEAIqMgoPQ29tcHJlc3Npb25UeXBlEggKBE5P",
-            "TkUQABIICgRHWklQEAESCwoHREVGTEFURRACYgZwcm90bzM="));
+            "LnRlc3RpbmciGgoJQm9vbFZhbHVlEg0KBXZhbHVlGAEgASgIIkAKB1BheWxv",
+            "YWQSJwoEdHlwZRgBIAEoDjIZLmdycGMudGVzdGluZy5QYXlsb2FkVHlwZRIM",
+            "CgRib2R5GAIgASgMIisKCkVjaG9TdGF0dXMSDAoEY29kZRgBIAEoBRIPCgdt",
+            "ZXNzYWdlGAIgASgJIs4CCg1TaW1wbGVSZXF1ZXN0EjAKDXJlc3BvbnNlX3R5",
+            "cGUYASABKA4yGS5ncnBjLnRlc3RpbmcuUGF5bG9hZFR5cGUSFQoNcmVzcG9u",
+            "c2Vfc2l6ZRgCIAEoBRImCgdwYXlsb2FkGAMgASgLMhUuZ3JwYy50ZXN0aW5n",
+            "LlBheWxvYWQSFQoNZmlsbF91c2VybmFtZRgEIAEoCBIYChBmaWxsX29hdXRo",
+            "X3Njb3BlGAUgASgIEjQKE3Jlc3BvbnNlX2NvbXByZXNzZWQYBiABKAsyFy5n",
+            "cnBjLnRlc3RpbmcuQm9vbFZhbHVlEjEKD3Jlc3BvbnNlX3N0YXR1cxgHIAEo",
+            "CzIYLmdycGMudGVzdGluZy5FY2hvU3RhdHVzEjIKEWV4cGVjdF9jb21wcmVz",
+            "c2VkGAggASgLMhcuZ3JwYy50ZXN0aW5nLkJvb2xWYWx1ZSJfCg5TaW1wbGVS",
+            "ZXNwb25zZRImCgdwYXlsb2FkGAEgASgLMhUuZ3JwYy50ZXN0aW5nLlBheWxv",
+            "YWQSEAoIdXNlcm5hbWUYAiABKAkSEwoLb2F1dGhfc2NvcGUYAyABKAkidwoZ",
+            "U3RyZWFtaW5nSW5wdXRDYWxsUmVxdWVzdBImCgdwYXlsb2FkGAEgASgLMhUu",
+            "Z3JwYy50ZXN0aW5nLlBheWxvYWQSMgoRZXhwZWN0X2NvbXByZXNzZWQYAiAB",
+            "KAsyFy5ncnBjLnRlc3RpbmcuQm9vbFZhbHVlIj0KGlN0cmVhbWluZ0lucHV0",
+            "Q2FsbFJlc3BvbnNlEh8KF2FnZ3JlZ2F0ZWRfcGF5bG9hZF9zaXplGAEgASgF",
+            "ImQKElJlc3BvbnNlUGFyYW1ldGVycxIMCgRzaXplGAEgASgFEhMKC2ludGVy",
+            "dmFsX3VzGAIgASgFEisKCmNvbXByZXNzZWQYAyABKAsyFy5ncnBjLnRlc3Rp",
+            "bmcuQm9vbFZhbHVlIugBChpTdHJlYW1pbmdPdXRwdXRDYWxsUmVxdWVzdBIw",
+            "Cg1yZXNwb25zZV90eXBlGAEgASgOMhkuZ3JwYy50ZXN0aW5nLlBheWxvYWRU",
+            "eXBlEj0KE3Jlc3BvbnNlX3BhcmFtZXRlcnMYAiADKAsyIC5ncnBjLnRlc3Rp",
+            "bmcuUmVzcG9uc2VQYXJhbWV0ZXJzEiYKB3BheWxvYWQYAyABKAsyFS5ncnBj",
+            "LnRlc3RpbmcuUGF5bG9hZBIxCg9yZXNwb25zZV9zdGF0dXMYByABKAsyGC5n",
+            "cnBjLnRlc3RpbmcuRWNob1N0YXR1cyJFChtTdHJlYW1pbmdPdXRwdXRDYWxs",
+            "UmVzcG9uc2USJgoHcGF5bG9hZBgBIAEoCzIVLmdycGMudGVzdGluZy5QYXls",
+            "b2FkIjMKD1JlY29ubmVjdFBhcmFtcxIgChhtYXhfcmVjb25uZWN0X2JhY2tv",
+            "ZmZfbXMYASABKAUiMwoNUmVjb25uZWN0SW5mbxIOCgZwYXNzZWQYASABKAgS",
+            "EgoKYmFja29mZl9tcxgCIAMoBSofCgtQYXlsb2FkVHlwZRIQCgxDT01QUkVT",
+            "U0FCTEUQAGIGcHJvdG8z"));
       descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
           new pbr::FileDescriptor[] { },
-          new pbr::GeneratedClrTypeInfo(new[] {typeof(global::Grpc.Testing.PayloadType), typeof(global::Grpc.Testing.CompressionType), }, new pbr::GeneratedClrTypeInfo[] {
+          new pbr::GeneratedClrTypeInfo(new[] {typeof(global::Grpc.Testing.PayloadType), }, new pbr::GeneratedClrTypeInfo[] {
+            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.BoolValue), global::Grpc.Testing.BoolValue.Parser, new[]{ "Value" }, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.Payload), global::Grpc.Testing.Payload.Parser, new[]{ "Type", "Body" }, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.EchoStatus), global::Grpc.Testing.EchoStatus.Parser, new[]{ "Code", "Message" }, null, null, null),
-            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.SimpleRequest), global::Grpc.Testing.SimpleRequest.Parser, new[]{ "ResponseType", "ResponseSize", "Payload", "FillUsername", "FillOauthScope", "ResponseCompression", "ResponseStatus" }, null, null, null),
+            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.SimpleRequest), global::Grpc.Testing.SimpleRequest.Parser, new[]{ "ResponseType", "ResponseSize", "Payload", "FillUsername", "FillOauthScope", "ResponseCompressed", "ResponseStatus", "ExpectCompressed" }, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.SimpleResponse), global::Grpc.Testing.SimpleResponse.Parser, new[]{ "Payload", "Username", "OauthScope" }, null, null, null),
-            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.StreamingInputCallRequest), global::Grpc.Testing.StreamingInputCallRequest.Parser, new[]{ "Payload" }, null, null, null),
+            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.StreamingInputCallRequest), global::Grpc.Testing.StreamingInputCallRequest.Parser, new[]{ "Payload", "ExpectCompressed" }, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.StreamingInputCallResponse), global::Grpc.Testing.StreamingInputCallResponse.Parser, new[]{ "AggregatedPayloadSize" }, null, null, null),
-            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.ResponseParameters), global::Grpc.Testing.ResponseParameters.Parser, new[]{ "Size", "IntervalUs" }, null, null, null),
-            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.StreamingOutputCallRequest), global::Grpc.Testing.StreamingOutputCallRequest.Parser, new[]{ "ResponseType", "ResponseParameters", "Payload", "ResponseCompression", "ResponseStatus" }, null, null, null),
+            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.ResponseParameters), global::Grpc.Testing.ResponseParameters.Parser, new[]{ "Size", "IntervalUs", "Compressed" }, null, null, null),
+            new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.StreamingOutputCallRequest), global::Grpc.Testing.StreamingOutputCallRequest.Parser, new[]{ "ResponseType", "ResponseParameters", "Payload", "ResponseStatus" }, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.StreamingOutputCallResponse), global::Grpc.Testing.StreamingOutputCallResponse.Parser, new[]{ "Payload" }, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.ReconnectParams), global::Grpc.Testing.ReconnectParams.Parser, new[]{ "MaxReconnectBackoffMs" }, null, null, null),
             new pbr::GeneratedClrTypeInfo(typeof(global::Grpc.Testing.ReconnectInfo), global::Grpc.Testing.ReconnectInfo.Parser, new[]{ "Passed", "BackoffMs" }, null, null, null)
@@ -74,6 +76,7 @@ namespace Grpc.Testing {
   }
   #region Enums
   /// <summary>
+  ///  DEPRECATED, don't use. To be removed shortly.
   ///  The type of payload that should be returned.
   /// </summary>
   public enum PayloadType {
@@ -81,31 +84,122 @@ namespace Grpc.Testing {
     ///  Compressable text format.
     /// </summary>
     [pbr::OriginalName("COMPRESSABLE")] Compressable = 0,
-    /// <summary>
-    ///  Uncompressable binary format.
-    /// </summary>
-    [pbr::OriginalName("UNCOMPRESSABLE")] Uncompressable = 1,
-    /// <summary>
-    ///  Randomly chosen from all other formats defined in this enum.
-    /// </summary>
-    [pbr::OriginalName("RANDOM")] Random = 2,
   }
 
+  #endregion
+
+  #region Messages
   /// <summary>
-  ///  Compression algorithms
+  ///  TODO(dgq): Go back to using well-known types once
+  ///  https://github.com/grpc/grpc/issues/6980 has been fixed.
+  ///  import "google/protobuf/wrappers.proto";
   /// </summary>
-  public enum CompressionType {
+  [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+  public sealed partial class BoolValue : pb::IMessage<BoolValue> {
+    private static readonly pb::MessageParser<BoolValue> _parser = new pb::MessageParser<BoolValue>(() => new BoolValue());
+    public static pb::MessageParser<BoolValue> Parser { get { return _parser; } }
+
+    public static pbr::MessageDescriptor Descriptor {
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[0]; }
+    }
+
+    pbr::MessageDescriptor pb::IMessage.Descriptor {
+      get { return Descriptor; }
+    }
+
+    public BoolValue() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
+
+    public BoolValue(BoolValue other) : this() {
+      value_ = other.value_;
+    }
+
+    public BoolValue Clone() {
+      return new BoolValue(this);
+    }
+
+    /// <summary>Field number for the "value" field.</summary>
+    public const int ValueFieldNumber = 1;
+    private bool value_;
     /// <summary>
-    ///  No compression
+    ///  The bool value.
     /// </summary>
-    [pbr::OriginalName("NONE")] None = 0,
-    [pbr::OriginalName("GZIP")] Gzip = 1,
-    [pbr::OriginalName("DEFLATE")] Deflate = 2,
-  }
+    public bool Value {
+      get { return value_; }
+      set {
+        value_ = value;
+      }
+    }
 
-  #endregion
+    public override bool Equals(object other) {
+      return Equals(other as BoolValue);
+    }
+
+    public bool Equals(BoolValue other) {
+      if (ReferenceEquals(other, null)) {
+        return false;
+      }
+      if (ReferenceEquals(other, this)) {
+        return true;
+      }
+      if (Value != other.Value) return false;
+      return true;
+    }
+
+    public override int GetHashCode() {
+      int hash = 1;
+      if (Value != false) hash ^= Value.GetHashCode();
+      return hash;
+    }
+
+    public override string ToString() {
+      return pb::JsonFormatter.ToDiagnosticString(this);
+    }
+
+    public void WriteTo(pb::CodedOutputStream output) {
+      if (Value != false) {
+        output.WriteRawTag(8);
+        output.WriteBool(Value);
+      }
+    }
+
+    public int CalculateSize() {
+      int size = 0;
+      if (Value != false) {
+        size += 1 + 1;
+      }
+      return size;
+    }
+
+    public void MergeFrom(BoolValue other) {
+      if (other == null) {
+        return;
+      }
+      if (other.Value != false) {
+        Value = other.Value;
+      }
+    }
+
+    public void MergeFrom(pb::CodedInputStream input) {
+      uint tag;
+      while ((tag = input.ReadTag()) != 0) {
+        switch(tag) {
+          default:
+            input.SkipLastField();
+            break;
+          case 8: {
+            Value = input.ReadBool();
+            break;
+          }
+        }
+      }
+    }
+
+  }
 
-  #region Messages
   /// <summary>
   ///  A block of data, to simply increase gRPC message size.
   /// </summary>
@@ -115,7 +209,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<Payload> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[0]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[1]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -141,6 +235,7 @@ namespace Grpc.Testing {
     public const int TypeFieldNumber = 1;
     private global::Grpc.Testing.PayloadType type_ = 0;
     /// <summary>
+    ///  DEPRECATED, don't use. To be removed shortly.
     ///  The type of data in body.
     /// </summary>
     public global::Grpc.Testing.PayloadType Type {
@@ -255,7 +350,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<EchoStatus> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[1]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[2]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -388,7 +483,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<SimpleRequest> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[2]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[3]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -407,8 +502,9 @@ namespace Grpc.Testing {
       Payload = other.payload_ != null ? other.Payload.Clone() : null;
       fillUsername_ = other.fillUsername_;
       fillOauthScope_ = other.fillOauthScope_;
-      responseCompression_ = other.responseCompression_;
+      ResponseCompressed = other.responseCompressed_ != null ? other.ResponseCompressed.Clone() : null;
       ResponseStatus = other.responseStatus_ != null ? other.ResponseStatus.Clone() : null;
+      ExpectCompressed = other.expectCompressed_ != null ? other.ExpectCompressed.Clone() : null;
     }
 
     public SimpleRequest Clone() {
@@ -419,6 +515,7 @@ namespace Grpc.Testing {
     public const int ResponseTypeFieldNumber = 1;
     private global::Grpc.Testing.PayloadType responseType_ = 0;
     /// <summary>
+    ///  DEPRECATED, don't use. To be removed shortly.
     ///  Desired payload type in the response from the server.
     ///  If response_type is RANDOM, server randomly chooses one from other formats.
     /// </summary>
@@ -434,7 +531,6 @@ namespace Grpc.Testing {
     private int responseSize_;
     /// <summary>
     ///  Desired payload size in the response from the server.
-    ///  If response_type is COMPRESSABLE, this denotes the size before compression.
     /// </summary>
     public int ResponseSize {
       get { return responseSize_; }
@@ -482,16 +578,19 @@ namespace Grpc.Testing {
       }
     }
 
-    /// <summary>Field number for the "response_compression" field.</summary>
-    public const int ResponseCompressionFieldNumber = 6;
-    private global::Grpc.Testing.CompressionType responseCompression_ = 0;
+    /// <summary>Field number for the "response_compressed" field.</summary>
+    public const int ResponseCompressedFieldNumber = 6;
+    private global::Grpc.Testing.BoolValue responseCompressed_;
     /// <summary>
-    ///  Compression algorithm to be used by the server for the response (stream)
+    ///  Whether to request the server to compress the response. This field is
+    ///  "nullable" in order to interoperate seamlessly with clients not able to
+    ///  implement the full compression tests by introspecting the call to verify
+    ///  the response's compression status.
     /// </summary>
-    public global::Grpc.Testing.CompressionType ResponseCompression {
-      get { return responseCompression_; }
+    public global::Grpc.Testing.BoolValue ResponseCompressed {
+      get { return responseCompressed_; }
       set {
-        responseCompression_ = value;
+        responseCompressed_ = value;
       }
     }
 
@@ -508,6 +607,19 @@ namespace Grpc.Testing {
       }
     }
 
+    /// <summary>Field number for the "expect_compressed" field.</summary>
+    public const int ExpectCompressedFieldNumber = 8;
+    private global::Grpc.Testing.BoolValue expectCompressed_;
+    /// <summary>
+    ///  Whether the server should expect this request to be compressed.
+    /// </summary>
+    public global::Grpc.Testing.BoolValue ExpectCompressed {
+      get { return expectCompressed_; }
+      set {
+        expectCompressed_ = value;
+      }
+    }
+
     public override bool Equals(object other) {
       return Equals(other as SimpleRequest);
     }
@@ -524,8 +636,9 @@ namespace Grpc.Testing {
       if (!object.Equals(Payload, other.Payload)) return false;
       if (FillUsername != other.FillUsername) return false;
       if (FillOauthScope != other.FillOauthScope) return false;
-      if (ResponseCompression != other.ResponseCompression) return false;
+      if (!object.Equals(ResponseCompressed, other.ResponseCompressed)) return false;
       if (!object.Equals(ResponseStatus, other.ResponseStatus)) return false;
+      if (!object.Equals(ExpectCompressed, other.ExpectCompressed)) return false;
       return true;
     }
 
@@ -536,8 +649,9 @@ namespace Grpc.Testing {
       if (payload_ != null) hash ^= Payload.GetHashCode();
       if (FillUsername != false) hash ^= FillUsername.GetHashCode();
       if (FillOauthScope != false) hash ^= FillOauthScope.GetHashCode();
-      if (ResponseCompression != 0) hash ^= ResponseCompression.GetHashCode();
+      if (responseCompressed_ != null) hash ^= ResponseCompressed.GetHashCode();
       if (responseStatus_ != null) hash ^= ResponseStatus.GetHashCode();
+      if (expectCompressed_ != null) hash ^= ExpectCompressed.GetHashCode();
       return hash;
     }
 
@@ -566,14 +680,18 @@ namespace Grpc.Testing {
         output.WriteRawTag(40);
         output.WriteBool(FillOauthScope);
       }
-      if (ResponseCompression != 0) {
-        output.WriteRawTag(48);
-        output.WriteEnum((int) ResponseCompression);
+      if (responseCompressed_ != null) {
+        output.WriteRawTag(50);
+        output.WriteMessage(ResponseCompressed);
       }
       if (responseStatus_ != null) {
         output.WriteRawTag(58);
         output.WriteMessage(ResponseStatus);
       }
+      if (expectCompressed_ != null) {
+        output.WriteRawTag(66);
+        output.WriteMessage(ExpectCompressed);
+      }
     }
 
     public int CalculateSize() {
@@ -593,12 +711,15 @@ namespace Grpc.Testing {
       if (FillOauthScope != false) {
         size += 1 + 1;
       }
-      if (ResponseCompression != 0) {
-        size += 1 + pb::CodedOutputStream.ComputeEnumSize((int) ResponseCompression);
+      if (responseCompressed_ != null) {
+        size += 1 + pb::CodedOutputStream.ComputeMessageSize(ResponseCompressed);
       }
       if (responseStatus_ != null) {
         size += 1 + pb::CodedOutputStream.ComputeMessageSize(ResponseStatus);
       }
+      if (expectCompressed_ != null) {
+        size += 1 + pb::CodedOutputStream.ComputeMessageSize(ExpectCompressed);
+      }
       return size;
     }
 
@@ -624,8 +745,11 @@ namespace Grpc.Testing {
       if (other.FillOauthScope != false) {
         FillOauthScope = other.FillOauthScope;
       }
-      if (other.ResponseCompression != 0) {
-        ResponseCompression = other.ResponseCompression;
+      if (other.responseCompressed_ != null) {
+        if (responseCompressed_ == null) {
+          responseCompressed_ = new global::Grpc.Testing.BoolValue();
+        }
+        ResponseCompressed.MergeFrom(other.ResponseCompressed);
       }
       if (other.responseStatus_ != null) {
         if (responseStatus_ == null) {
@@ -633,6 +757,12 @@ namespace Grpc.Testing {
         }
         ResponseStatus.MergeFrom(other.ResponseStatus);
       }
+      if (other.expectCompressed_ != null) {
+        if (expectCompressed_ == null) {
+          expectCompressed_ = new global::Grpc.Testing.BoolValue();
+        }
+        ExpectCompressed.MergeFrom(other.ExpectCompressed);
+      }
     }
 
     public void MergeFrom(pb::CodedInputStream input) {
@@ -665,8 +795,11 @@ namespace Grpc.Testing {
             FillOauthScope = input.ReadBool();
             break;
           }
-          case 48: {
-            responseCompression_ = (global::Grpc.Testing.CompressionType) input.ReadEnum();
+          case 50: {
+            if (responseCompressed_ == null) {
+              responseCompressed_ = new global::Grpc.Testing.BoolValue();
+            }
+            input.ReadMessage(responseCompressed_);
             break;
           }
           case 58: {
@@ -676,6 +809,13 @@ namespace Grpc.Testing {
             input.ReadMessage(responseStatus_);
             break;
           }
+          case 66: {
+            if (expectCompressed_ == null) {
+              expectCompressed_ = new global::Grpc.Testing.BoolValue();
+            }
+            input.ReadMessage(expectCompressed_);
+            break;
+          }
         }
       }
     }
@@ -691,7 +831,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<SimpleResponse> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[3]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[4]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -867,7 +1007,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<StreamingInputCallRequest> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[4]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[5]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -882,6 +1022,7 @@ namespace Grpc.Testing {
 
     public StreamingInputCallRequest(StreamingInputCallRequest other) : this() {
       Payload = other.payload_ != null ? other.Payload.Clone() : null;
+      ExpectCompressed = other.expectCompressed_ != null ? other.ExpectCompressed.Clone() : null;
     }
 
     public StreamingInputCallRequest Clone() {
@@ -901,6 +1042,22 @@ namespace Grpc.Testing {
       }
     }
 
+    /// <summary>Field number for the "expect_compressed" field.</summary>
+    public const int ExpectCompressedFieldNumber = 2;
+    private global::Grpc.Testing.BoolValue expectCompressed_;
+    /// <summary>
+    ///  Whether the server should expect this request to be compressed. This field
+    ///  is "nullable" in order to interoperate seamlessly with servers not able to
+    ///  implement the full compression tests by introspecting the call to verify
+    ///  the request's compression status.
+    /// </summary>
+    public global::Grpc.Testing.BoolValue ExpectCompressed {
+      get { return expectCompressed_; }
+      set {
+        expectCompressed_ = value;
+      }
+    }
+
     public override bool Equals(object other) {
       return Equals(other as StreamingInputCallRequest);
     }
@@ -913,12 +1070,14 @@ namespace Grpc.Testing {
         return true;
       }
       if (!object.Equals(Payload, other.Payload)) return false;
+      if (!object.Equals(ExpectCompressed, other.ExpectCompressed)) return false;
       return true;
     }
 
     public override int GetHashCode() {
       int hash = 1;
       if (payload_ != null) hash ^= Payload.GetHashCode();
+      if (expectCompressed_ != null) hash ^= ExpectCompressed.GetHashCode();
       return hash;
     }
 
@@ -931,6 +1090,10 @@ namespace Grpc.Testing {
         output.WriteRawTag(10);
         output.WriteMessage(Payload);
       }
+      if (expectCompressed_ != null) {
+        output.WriteRawTag(18);
+        output.WriteMessage(ExpectCompressed);
+      }
     }
 
     public int CalculateSize() {
@@ -938,6 +1101,9 @@ namespace Grpc.Testing {
       if (payload_ != null) {
         size += 1 + pb::CodedOutputStream.ComputeMessageSize(Payload);
       }
+      if (expectCompressed_ != null) {
+        size += 1 + pb::CodedOutputStream.ComputeMessageSize(ExpectCompressed);
+      }
       return size;
     }
 
@@ -951,6 +1117,12 @@ namespace Grpc.Testing {
         }
         Payload.MergeFrom(other.Payload);
       }
+      if (other.expectCompressed_ != null) {
+        if (expectCompressed_ == null) {
+          expectCompressed_ = new global::Grpc.Testing.BoolValue();
+        }
+        ExpectCompressed.MergeFrom(other.ExpectCompressed);
+      }
     }
 
     public void MergeFrom(pb::CodedInputStream input) {
@@ -967,6 +1139,13 @@ namespace Grpc.Testing {
             input.ReadMessage(payload_);
             break;
           }
+          case 18: {
+            if (expectCompressed_ == null) {
+              expectCompressed_ = new global::Grpc.Testing.BoolValue();
+            }
+            input.ReadMessage(expectCompressed_);
+            break;
+          }
         }
       }
     }
@@ -982,7 +1161,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<StreamingInputCallResponse> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[5]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[6]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1091,7 +1270,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<ResponseParameters> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[6]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[7]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1107,6 +1286,7 @@ namespace Grpc.Testing {
     public ResponseParameters(ResponseParameters other) : this() {
       size_ = other.size_;
       intervalUs_ = other.intervalUs_;
+      Compressed = other.compressed_ != null ? other.Compressed.Clone() : null;
     }
 
     public ResponseParameters Clone() {
@@ -1118,7 +1298,6 @@ namespace Grpc.Testing {
     private int size_;
     /// <summary>
     ///  Desired payload sizes in responses from the server.
-    ///  If response_type is COMPRESSABLE, this denotes the size before compression.
     /// </summary>
     public int Size {
       get { return size_; }
@@ -1141,6 +1320,22 @@ namespace Grpc.Testing {
       }
     }
 
+    /// <summary>Field number for the "compressed" field.</summary>
+    public const int CompressedFieldNumber = 3;
+    private global::Grpc.Testing.BoolValue compressed_;
+    /// <summary>
+    ///  Whether to request the server to compress the response. This field is
+    ///  "nullable" in order to interoperate seamlessly with clients not able to
+    ///  implement the full compression tests by introspecting the call to verify
+    ///  the response's compression status.
+    /// </summary>
+    public global::Grpc.Testing.BoolValue Compressed {
+      get { return compressed_; }
+      set {
+        compressed_ = value;
+      }
+    }
+
     public override bool Equals(object other) {
       return Equals(other as ResponseParameters);
     }
@@ -1154,6 +1349,7 @@ namespace Grpc.Testing {
       }
       if (Size != other.Size) return false;
       if (IntervalUs != other.IntervalUs) return false;
+      if (!object.Equals(Compressed, other.Compressed)) return false;
       return true;
     }
 
@@ -1161,6 +1357,7 @@ namespace Grpc.Testing {
       int hash = 1;
       if (Size != 0) hash ^= Size.GetHashCode();
       if (IntervalUs != 0) hash ^= IntervalUs.GetHashCode();
+      if (compressed_ != null) hash ^= Compressed.GetHashCode();
       return hash;
     }
 
@@ -1177,6 +1374,10 @@ namespace Grpc.Testing {
         output.WriteRawTag(16);
         output.WriteInt32(IntervalUs);
       }
+      if (compressed_ != null) {
+        output.WriteRawTag(26);
+        output.WriteMessage(Compressed);
+      }
     }
 
     public int CalculateSize() {
@@ -1187,6 +1388,9 @@ namespace Grpc.Testing {
       if (IntervalUs != 0) {
         size += 1 + pb::CodedOutputStream.ComputeInt32Size(IntervalUs);
       }
+      if (compressed_ != null) {
+        size += 1 + pb::CodedOutputStream.ComputeMessageSize(Compressed);
+      }
       return size;
     }
 
@@ -1200,6 +1404,12 @@ namespace Grpc.Testing {
       if (other.IntervalUs != 0) {
         IntervalUs = other.IntervalUs;
       }
+      if (other.compressed_ != null) {
+        if (compressed_ == null) {
+          compressed_ = new global::Grpc.Testing.BoolValue();
+        }
+        Compressed.MergeFrom(other.Compressed);
+      }
     }
 
     public void MergeFrom(pb::CodedInputStream input) {
@@ -1217,6 +1427,13 @@ namespace Grpc.Testing {
             IntervalUs = input.ReadInt32();
             break;
           }
+          case 26: {
+            if (compressed_ == null) {
+              compressed_ = new global::Grpc.Testing.BoolValue();
+            }
+            input.ReadMessage(compressed_);
+            break;
+          }
         }
       }
     }
@@ -1232,7 +1449,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<StreamingOutputCallRequest> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[7]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[8]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1249,7 +1466,6 @@ namespace Grpc.Testing {
       responseType_ = other.responseType_;
       responseParameters_ = other.responseParameters_.Clone();
       Payload = other.payload_ != null ? other.Payload.Clone() : null;
-      responseCompression_ = other.responseCompression_;
       ResponseStatus = other.responseStatus_ != null ? other.ResponseStatus.Clone() : null;
     }
 
@@ -1261,6 +1477,7 @@ namespace Grpc.Testing {
     public const int ResponseTypeFieldNumber = 1;
     private global::Grpc.Testing.PayloadType responseType_ = 0;
     /// <summary>
+    ///  DEPRECATED, don't use. To be removed shortly.
     ///  Desired payload type in the response from the server.
     ///  If response_type is RANDOM, the payload from each response in the stream
     ///  might be of different types. This is to simulate a mixed type of payload
@@ -1298,19 +1515,6 @@ namespace Grpc.Testing {
       }
     }
 
-    /// <summary>Field number for the "response_compression" field.</summary>
-    public const int ResponseCompressionFieldNumber = 6;
-    private global::Grpc.Testing.CompressionType responseCompression_ = 0;
-    /// <summary>
-    ///  Compression algorithm to be used by the server for the response (stream)
-    /// </summary>
-    public global::Grpc.Testing.CompressionType ResponseCompression {
-      get { return responseCompression_; }
-      set {
-        responseCompression_ = value;
-      }
-    }
-
     /// <summary>Field number for the "response_status" field.</summary>
     public const int ResponseStatusFieldNumber = 7;
     private global::Grpc.Testing.EchoStatus responseStatus_;
@@ -1338,7 +1542,6 @@ namespace Grpc.Testing {
       if (ResponseType != other.ResponseType) return false;
       if(!responseParameters_.Equals(other.responseParameters_)) return false;
       if (!object.Equals(Payload, other.Payload)) return false;
-      if (ResponseCompression != other.ResponseCompression) return false;
       if (!object.Equals(ResponseStatus, other.ResponseStatus)) return false;
       return true;
     }
@@ -1348,7 +1551,6 @@ namespace Grpc.Testing {
       if (ResponseType != 0) hash ^= ResponseType.GetHashCode();
       hash ^= responseParameters_.GetHashCode();
       if (payload_ != null) hash ^= Payload.GetHashCode();
-      if (ResponseCompression != 0) hash ^= ResponseCompression.GetHashCode();
       if (responseStatus_ != null) hash ^= ResponseStatus.GetHashCode();
       return hash;
     }
@@ -1367,10 +1569,6 @@ namespace Grpc.Testing {
         output.WriteRawTag(26);
         output.WriteMessage(Payload);
       }
-      if (ResponseCompression != 0) {
-        output.WriteRawTag(48);
-        output.WriteEnum((int) ResponseCompression);
-      }
       if (responseStatus_ != null) {
         output.WriteRawTag(58);
         output.WriteMessage(ResponseStatus);
@@ -1386,9 +1584,6 @@ namespace Grpc.Testing {
       if (payload_ != null) {
         size += 1 + pb::CodedOutputStream.ComputeMessageSize(Payload);
       }
-      if (ResponseCompression != 0) {
-        size += 1 + pb::CodedOutputStream.ComputeEnumSize((int) ResponseCompression);
-      }
       if (responseStatus_ != null) {
         size += 1 + pb::CodedOutputStream.ComputeMessageSize(ResponseStatus);
       }
@@ -1409,9 +1604,6 @@ namespace Grpc.Testing {
         }
         Payload.MergeFrom(other.Payload);
       }
-      if (other.ResponseCompression != 0) {
-        ResponseCompression = other.ResponseCompression;
-      }
       if (other.responseStatus_ != null) {
         if (responseStatus_ == null) {
           responseStatus_ = new global::Grpc.Testing.EchoStatus();
@@ -1442,10 +1634,6 @@ namespace Grpc.Testing {
             input.ReadMessage(payload_);
             break;
           }
-          case 48: {
-            responseCompression_ = (global::Grpc.Testing.CompressionType) input.ReadEnum();
-            break;
-          }
           case 58: {
             if (responseStatus_ == null) {
               responseStatus_ = new global::Grpc.Testing.EchoStatus();
@@ -1468,7 +1656,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<StreamingOutputCallResponse> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[8]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[9]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1584,7 +1772,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<ReconnectParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[9]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[10]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1692,7 +1880,7 @@ namespace Grpc.Testing {
     public static pb::MessageParser<ReconnectInfo> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[10]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[11]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
diff --git a/src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs b/src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs
index f95af5008f..eb3bb8a28b 100644
--- a/src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs
+++ b/src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs
@@ -40,7 +40,6 @@ using System.Threading.Tasks;
 using Grpc.Core;
 using Grpc.Core.Utils;
 using Grpc.Testing;
-using Moq;
 using NUnit.Framework;
 
 namespace Grpc.IntegrationTesting
@@ -52,19 +51,14 @@ namespace Grpc.IntegrationTesting
         Channel channel;
         TestService.TestServiceClient client;
         List<ChannelOption> options;
-        Mock<TestService.TestServiceBase> serviceMock;
         AsyncAuthInterceptor asyncAuthInterceptor;
 
         [SetUp]
         public void Init()
         {
-            serviceMock = new Mock<TestService.TestServiceBase>();
-            serviceMock.Setup(m => m.UnaryCall(It.IsAny<SimpleRequest>(), It.IsAny<ServerCallContext>()))
-                .Returns(new Func<SimpleRequest, ServerCallContext, Task<SimpleResponse>>(UnaryCallHandler));
-
             server = new Server
             {
-                Services = { TestService.BindService(serviceMock.Object) },
+                Services = { TestService.BindService(new FakeTestService()) },
                 Ports = { { Host, ServerPort.PickUnused, TestCredentials.CreateSslServerCredentials() } }
             };
             server.Start();
@@ -94,26 +88,29 @@ namespace Grpc.IntegrationTesting
             var channelCredentials = ChannelCredentials.Create(TestCredentials.CreateSslCredentials(),
                 CallCredentials.FromInterceptor(asyncAuthInterceptor));
             channel = new Channel(Host, server.Ports.Single().BoundPort, channelCredentials, options);
-            client = TestService.NewClient(channel);
+            client = new TestService.TestServiceClient(channel);
 
-            client.UnaryCall(new SimpleRequest {});
+            client.UnaryCall(new SimpleRequest { });
         }
 
         [Test]
         public void MetadataCredentials_PerCall()
         {
             channel = new Channel(Host, server.Ports.Single().BoundPort, TestCredentials.CreateSslCredentials(), options);
-            client = TestService.NewClient(channel);
+            client = new TestService.TestServiceClient(channel);
 
             var callCredentials = CallCredentials.FromInterceptor(asyncAuthInterceptor);
             client.UnaryCall(new SimpleRequest { }, new CallOptions(credentials: callCredentials));
         }
 
-        private Task<SimpleResponse> UnaryCallHandler(SimpleRequest request, ServerCallContext context)
+        private class FakeTestService : TestService.TestServiceBase
         {
-            var authToken = context.RequestHeaders.First((entry) => entry.Key == "authorization").Value;
-            Assert.AreEqual("SECRET_TOKEN", authToken);
-            return Task.FromResult(new SimpleResponse());
+            public override Task<SimpleResponse> UnaryCall(SimpleRequest request, ServerCallContext context)
+            {
+                var authToken = context.RequestHeaders.First((entry) => entry.Key == "authorization").Value;
+                Assert.AreEqual("SECRET_TOKEN", authToken);
+                return Task.FromResult(new SimpleResponse());
+            }
         }
     }
 }
diff --git a/src/csharp/Grpc.IntegrationTesting/MetricsGrpc.cs b/src/csharp/Grpc.IntegrationTesting/MetricsGrpc.cs
index 22bd27ec0a..040798e3c2 100644
--- a/src/csharp/Grpc.IntegrationTesting/MetricsGrpc.cs
+++ b/src/csharp/Grpc.IntegrationTesting/MetricsGrpc.cs
@@ -97,17 +97,22 @@ namespace Grpc.Testing {
     /// <summary>Client for MetricsService</summary>
     public class MetricsServiceClient : ClientBase<MetricsServiceClient>
     {
+      /// <summary>Creates a new client for MetricsService</summary>
+      /// <param name="channel">The channel to use to make remote calls.</param>
       public MetricsServiceClient(Channel channel) : base(channel)
       {
       }
+      /// <summary>Creates a new client for MetricsService that uses a custom <c>CallInvoker</c>.</summary>
+      /// <param name="callInvoker">The callInvoker to use to make remote calls.</param>
       public MetricsServiceClient(CallInvoker callInvoker) : base(callInvoker)
       {
       }
-      ///<summary>Protected parameterless constructor to allow creation of test doubles.</summary>
+      /// <summary>Protected parameterless constructor to allow creation of test doubles.</summary>
       protected MetricsServiceClient() : base()
       {
       }
-      ///<summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <param name="configuration">The client configuration.</param>
       protected MetricsServiceClient(ClientBaseConfiguration configuration) : base(configuration)
       {
       }
@@ -162,12 +167,6 @@ namespace Grpc.Testing {
       }
     }
 
-    /// <summary>Creates a new client for MetricsService</summary>
-    public static MetricsServiceClient NewClient(Channel channel)
-    {
-      return new MetricsServiceClient(channel);
-    }
-
     /// <summary>Creates service definition that can be registered with a server</summary>
     public static ServerServiceDefinition BindService(MetricsServiceBase serviceImpl)
     {
diff --git a/src/csharp/Grpc.IntegrationTesting/NUnitMain.cs b/src/csharp/Grpc.IntegrationTesting/NUnitMain.cs
index d8902de08f..100ff0b5de 100644
--- a/src/csharp/Grpc.IntegrationTesting/NUnitMain.cs
+++ b/src/csharp/Grpc.IntegrationTesting/NUnitMain.cs
@@ -49,7 +49,7 @@ namespace Grpc.IntegrationTesting
         {
             // Make logger immune to NUnit capturing stdout and stderr to workaround https://github.com/nunit/nunit/issues/1406.
             GrpcEnvironment.SetLogger(new TextWriterLogger(Console.Error));
-#if DOTNET5_4
+#if NETSTANDARD1_5
             return new AutoRun(typeof(NUnitMain).GetTypeInfo().Assembly).Execute(args, new ExtendedTextWrapper(Console.Out), Console.In);
 #else
             return new AutoRun().Execute(args);
diff --git a/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs b/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
index 9c99296115..e205dea93e 100644
--- a/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
+++ b/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
@@ -93,17 +93,22 @@ namespace Grpc.Testing {
     /// <summary>Client for BenchmarkService</summary>
     public class BenchmarkServiceClient : ClientBase<BenchmarkServiceClient>
     {
+      /// <summary>Creates a new client for BenchmarkService</summary>
+      /// <param name="channel">The channel to use to make remote calls.</param>
       public BenchmarkServiceClient(Channel channel) : base(channel)
       {
       }
+      /// <summary>Creates a new client for BenchmarkService that uses a custom <c>CallInvoker</c>.</summary>
+      /// <param name="callInvoker">The callInvoker to use to make remote calls.</param>
       public BenchmarkServiceClient(CallInvoker callInvoker) : base(callInvoker)
       {
       }
-      ///<summary>Protected parameterless constructor to allow creation of test doubles.</summary>
+      /// <summary>Protected parameterless constructor to allow creation of test doubles.</summary>
       protected BenchmarkServiceClient() : base()
       {
       }
-      ///<summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <param name="configuration">The client configuration.</param>
       protected BenchmarkServiceClient(ClientBaseConfiguration configuration) : base(configuration)
       {
       }
@@ -162,12 +167,6 @@ namespace Grpc.Testing {
       }
     }
 
-    /// <summary>Creates a new client for BenchmarkService</summary>
-    public static BenchmarkServiceClient NewClient(Channel channel)
-    {
-      return new BenchmarkServiceClient(channel);
-    }
-
     /// <summary>Creates service definition that can be registered with a server</summary>
     public static ServerServiceDefinition BindService(BenchmarkServiceBase serviceImpl)
     {
@@ -273,17 +272,22 @@ namespace Grpc.Testing {
     /// <summary>Client for WorkerService</summary>
     public class WorkerServiceClient : ClientBase<WorkerServiceClient>
     {
+      /// <summary>Creates a new client for WorkerService</summary>
+      /// <param name="channel">The channel to use to make remote calls.</param>
       public WorkerServiceClient(Channel channel) : base(channel)
       {
       }
+      /// <summary>Creates a new client for WorkerService that uses a custom <c>CallInvoker</c>.</summary>
+      /// <param name="callInvoker">The callInvoker to use to make remote calls.</param>
       public WorkerServiceClient(CallInvoker callInvoker) : base(callInvoker)
       {
       }
-      ///<summary>Protected parameterless constructor to allow creation of test doubles.</summary>
+      /// <summary>Protected parameterless constructor to allow creation of test doubles.</summary>
       protected WorkerServiceClient() : base()
       {
       }
-      ///<summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <param name="configuration">The client configuration.</param>
       protected WorkerServiceClient(ClientBaseConfiguration configuration) : base(configuration)
       {
       }
@@ -398,12 +402,6 @@ namespace Grpc.Testing {
       }
     }
 
-    /// <summary>Creates a new client for WorkerService</summary>
-    public static WorkerServiceClient NewClient(Channel channel)
-    {
-      return new WorkerServiceClient(channel);
-    }
-
     /// <summary>Creates service definition that can be registered with a server</summary>
     public static ServerServiceDefinition BindService(WorkerServiceBase serviceImpl)
     {
diff --git a/src/csharp/Grpc.IntegrationTesting/SslCredentialsTest.cs b/src/csharp/Grpc.IntegrationTesting/SslCredentialsTest.cs
index 3df45b5f70..f85e272711 100644
--- a/src/csharp/Grpc.IntegrationTesting/SslCredentialsTest.cs
+++ b/src/csharp/Grpc.IntegrationTesting/SslCredentialsTest.cs
@@ -79,7 +79,7 @@ namespace Grpc.IntegrationTesting
             };
 
             channel = new Channel(Host, server.Ports.Single().BoundPort, clientCredentials, options);
-            client = TestService.NewClient(channel);
+            client = new TestService.TestServiceClient(channel);
         }
 
         [TestFixtureTearDown]
diff --git a/src/csharp/Grpc.IntegrationTesting/StressTestClient.cs b/src/csharp/Grpc.IntegrationTesting/StressTestClient.cs
index 4d6ca7ece5..74ee040ae4 100644
--- a/src/csharp/Grpc.IntegrationTesting/StressTestClient.cs
+++ b/src/csharp/Grpc.IntegrationTesting/StressTestClient.cs
@@ -148,7 +148,7 @@ namespace Grpc.IntegrationTesting
                     channels.Add(channel);
                     for (int j = 0; j < options.NumStubsPerChannel; j++)
                     {
-                        var client = TestService.NewClient(channel);
+                        var client = new TestService.TestServiceClient(channel);
                         var task = Task.Factory.StartNew(() => RunBodyAsync(client).GetAwaiter().GetResult(),
                             TaskCreationOptions.LongRunning);
                         tasks.Add(task);  
diff --git a/src/csharp/Grpc.IntegrationTesting/TestCredentials.cs b/src/csharp/Grpc.IntegrationTesting/TestCredentials.cs
index 774563d752..60b9cf4e0b 100644
--- a/src/csharp/Grpc.IntegrationTesting/TestCredentials.cs
+++ b/src/csharp/Grpc.IntegrationTesting/TestCredentials.cs
@@ -90,7 +90,7 @@ namespace Grpc.IntegrationTesting
 
         private static string GetPath(string relativePath)
         {
-            var assemblyDir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
+            var assemblyDir = Path.GetDirectoryName(typeof(TestCredentials).GetTypeInfo().Assembly.Location);
             return Path.Combine(assemblyDir, relativePath);
         }
     }
diff --git a/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs b/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
index 6c252013f8..3e149da3e0 100644
--- a/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
+++ b/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
@@ -168,17 +168,22 @@ namespace Grpc.Testing {
     /// <summary>Client for TestService</summary>
     public class TestServiceClient : ClientBase<TestServiceClient>
     {
+      /// <summary>Creates a new client for TestService</summary>
+      /// <param name="channel">The channel to use to make remote calls.</param>
       public TestServiceClient(Channel channel) : base(channel)
       {
       }
+      /// <summary>Creates a new client for TestService that uses a custom <c>CallInvoker</c>.</summary>
+      /// <param name="callInvoker">The callInvoker to use to make remote calls.</param>
       public TestServiceClient(CallInvoker callInvoker) : base(callInvoker)
       {
       }
-      ///<summary>Protected parameterless constructor to allow creation of test doubles.</summary>
+      /// <summary>Protected parameterless constructor to allow creation of test doubles.</summary>
       protected TestServiceClient() : base()
       {
       }
-      ///<summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <param name="configuration">The client configuration.</param>
       protected TestServiceClient(ClientBaseConfiguration configuration) : base(configuration)
       {
       }
@@ -315,12 +320,6 @@ namespace Grpc.Testing {
       }
     }
 
-    /// <summary>Creates a new client for TestService</summary>
-    public static TestServiceClient NewClient(Channel channel)
-    {
-      return new TestServiceClient(channel);
-    }
-
     /// <summary>Creates service definition that can be registered with a server</summary>
     public static ServerServiceDefinition BindService(TestServiceBase serviceImpl)
     {
@@ -373,17 +372,22 @@ namespace Grpc.Testing {
     /// <summary>Client for UnimplementedService</summary>
     public class UnimplementedServiceClient : ClientBase<UnimplementedServiceClient>
     {
+      /// <summary>Creates a new client for UnimplementedService</summary>
+      /// <param name="channel">The channel to use to make remote calls.</param>
       public UnimplementedServiceClient(Channel channel) : base(channel)
       {
       }
+      /// <summary>Creates a new client for UnimplementedService that uses a custom <c>CallInvoker</c>.</summary>
+      /// <param name="callInvoker">The callInvoker to use to make remote calls.</param>
       public UnimplementedServiceClient(CallInvoker callInvoker) : base(callInvoker)
       {
       }
-      ///<summary>Protected parameterless constructor to allow creation of test doubles.</summary>
+      /// <summary>Protected parameterless constructor to allow creation of test doubles.</summary>
       protected UnimplementedServiceClient() : base()
       {
       }
-      ///<summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <param name="configuration">The client configuration.</param>
       protected UnimplementedServiceClient(ClientBaseConfiguration configuration) : base(configuration)
       {
       }
@@ -422,12 +426,6 @@ namespace Grpc.Testing {
       }
     }
 
-    /// <summary>Creates a new client for UnimplementedService</summary>
-    public static UnimplementedServiceClient NewClient(Channel channel)
-    {
-      return new UnimplementedServiceClient(channel);
-    }
-
     /// <summary>Creates service definition that can be registered with a server</summary>
     public static ServerServiceDefinition BindService(UnimplementedServiceBase serviceImpl)
     {
@@ -485,17 +483,22 @@ namespace Grpc.Testing {
     /// <summary>Client for ReconnectService</summary>
     public class ReconnectServiceClient : ClientBase<ReconnectServiceClient>
     {
+      /// <summary>Creates a new client for ReconnectService</summary>
+      /// <param name="channel">The channel to use to make remote calls.</param>
       public ReconnectServiceClient(Channel channel) : base(channel)
       {
       }
+      /// <summary>Creates a new client for ReconnectService that uses a custom <c>CallInvoker</c>.</summary>
+      /// <param name="callInvoker">The callInvoker to use to make remote calls.</param>
       public ReconnectServiceClient(CallInvoker callInvoker) : base(callInvoker)
       {
       }
-      ///<summary>Protected parameterless constructor to allow creation of test doubles.</summary>
+      /// <summary>Protected parameterless constructor to allow creation of test doubles.</summary>
       protected ReconnectServiceClient() : base()
       {
       }
-      ///<summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <summary>Protected constructor to allow creation of configured clients.</summary>
+      /// <param name="configuration">The client configuration.</param>
       protected ReconnectServiceClient(ClientBaseConfiguration configuration) : base(configuration)
       {
       }
@@ -538,12 +541,6 @@ namespace Grpc.Testing {
       }
     }
 
-    /// <summary>Creates a new client for ReconnectService</summary>
-    public static ReconnectServiceClient NewClient(Channel channel)
-    {
-      return new ReconnectServiceClient(channel);
-    }
-
     /// <summary>Creates service definition that can be registered with a server</summary>
     public static ServerServiceDefinition BindService(ReconnectServiceBase serviceImpl)
     {
diff --git a/src/csharp/Grpc.IntegrationTesting/project.json b/src/csharp/Grpc.IntegrationTesting/project.json
new file mode 100644
index 0000000000..3493ab0c22
--- /dev/null
+++ b/src/csharp/Grpc.IntegrationTesting/project.json
@@ -0,0 +1,72 @@
+{
+  "buildOptions": {
+    "emitEntryPoint": true
+  },
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          "include": "data/*",
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+
+  "dependencies": {
+    "Grpc.Auth": {
+      "target": "project"
+    },
+    "Grpc.Core": {
+      "target": "project"
+    },
+    "Google.Protobuf": "3.0.0-beta3",
+    "CommandLineParser": "1.9.71",
+    "NUnit": "3.2.0",
+    "NUnitLite": "3.2.0-*"
+  },
+  "frameworks": {
+    "net45": {
+      "dependencies": {
+        "Moq": "4.2.1510.2205"
+      },
+      "frameworkAssemblies": {
+        "System.Runtime": "",
+        "System.IO": ""
+      }
+    },
+    "netstandard1.5": {
+      "imports": [
+        "portable-net45",
+        "net45"
+      ],
+      "dependencies": {
+        "NETStandard.Library": "1.5.0-rc2-24027",
+        "System.Linq.Expressions": "4.0.11-rc2-24027"
+      }
+    }
+  }
+}
diff --git a/src/csharp/README.md b/src/csharp/README.md
index 201c5ab0b5..86394135c8 100644
--- a/src/csharp/README.md
+++ b/src/csharp/README.md
@@ -19,33 +19,13 @@ PREREQUISITES
 HOW TO USE
 --------------
 
-**Windows**
+**Windows, Linux, Mac OS X**
 
-- Open Visual Studio and start a new project/solution.
+- Open Visual Studio / MonoDevelop / Xamarin Studio and start a new project/solution.
 
 - Add NuGet package `Grpc` as a dependency (Project options -> Manage NuGet Packages).
-  That will also pull all the transitive dependencies (including the gRPC native library that
-  gRPC C# is using internally).
-
-**Linux (Debian)**
-
-- Open MonoDevelop and start a new project/solution.
-
-- Add NuGet package `Grpc` as a dependency (Project -> Add NuGet packages).
-  That will also pull all the transitive dependencies (including the gRPC native library that
-  gRPC C# is using internally).
-
-- NOTE: gRPC C# doesn't have a good story yet for shipping precompiled Linux version of Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin. You can install them using [gRPC Linuxbrew instructions][].
 
-**Mac OS X**
-
-- Open Xamarin Studio and start a new project/solution.
-
-- Add NuGet package `Grpc` as a dependency (Project -> Add NuGet packages).
-  That will also pull all the transitive dependencies (including the gRPC native library that
-  gRPC C# is using internally).
-
-- NOTE: gRPC C# doesn't have a good story yet for shipping precompiled Mac OS X version of Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin. You can install them using [gRPC Homebrew instructions][].
+- To be able to generate code from Protocol Buffer (`.proto`) file definitions, add NuGet package `Grpc.Tools` that contains Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin.
 
 BUILD FROM SOURCE
 -----------------
@@ -61,26 +41,15 @@ If you are a user of gRPC C#, go to Usage section above.
 - Open `src\csharp\Grpc.sln` (path is relative to gRPC repository root)
   using Visual Studio
 
-**Linux**
+**Linux and Mac OS X**
 
 - The grpc_csharp_ext native library needs to be built so you can build the gRPC C# solution:
   ```sh
   # from the gRPC repository root
-  $ make CONFIG=dbg grpc_csharp_ext
-  ```
-
-- Use MonoDevelop to open the solution Grpc.sln
-
-**Mac OS X**
-
-- The grpc_csharp_ext native library needs to be built so you can build the gRPC C# solution.
-
-  ```sh
-  # from the gRPC repository root
   $ tools/run_tests/run_tests.py -c dbg -l csharp --build_only
   ```
 
-- Use Xamarin Studio to open the solution Grpc.sln
+- Use MonoDevelop / Xamarin Studio to open the solution Grpc.sln
 
 RUNNING TESTS
 -------------
@@ -100,10 +69,17 @@ different languages.
 tools/run_tests/run_tests.py -l csharp
 ```
 
+ON .NET CORE SUPPORT
+------------------
+
+We are committed to providing full support for [.NET Core](https://dotnet.github.io/) in near future,
+but currently, the support is for .NET Core is experimental/work-in-progress.
+
 DOCUMENTATION
 -------------
-- the gRPC C# reference documentation is available online at [grpc.io][]
-- [Helloworld example][]
+- [API Reference][]
+- [Helloworld Example][]
+- [RouteGuide Tutorial][]
 
 CONTENTS
 --------
@@ -111,15 +87,15 @@ CONTENTS
 - ext:
   The extension library that wraps C API to be more digestible by C#.
 - Grpc.Auth:
-  gRPC OAuth2 support.
+  gRPC OAuth2/JWT support.
 - Grpc.Core:
   The main gRPC C# library.
 - Grpc.Examples:
   API examples for math.proto
 - Grpc.Examples.MathClient:
-  An example client that sends some requests to math server.
+  An example client that sends requests to math server.
 - Grpc.Examples.MathServer:
-  An example client that sends some requests to math server.
+  An example server that implements a simple math service.
 - Grpc.IntegrationTesting:
   Cross-language gRPC implementation testing (interop testing).
 
@@ -130,10 +106,6 @@ Internally, gRPC C# uses a native library written in C (gRPC C core) and invokes
 
 Prior to version 0.13, installing `grpc_csharp_ext` was required to make gRPC work on Linux and MacOS. Starting with version 0.13, we have improved the packaging story significantly and precompiled versions of the native library for all supported platforms are now shipped with the NuGet package. Just installing the `Grpc` NuGet package should be the only step needed to use gRPC C#, regardless of your platform (Windows, Linux or Mac) and the bitness (32 or 64bit).
 
-[gRPC Linuxbrew instructions]:https://github.com/grpc/homebrew-grpc#quick-install-linux
-[gRPC Homebrew instructions]:https://github.com/grpc/homebrew-grpc#quick-install-linux
-[homebrew]:http://brew.sh
-[gRPC install script]:https://raw.githubusercontent.com/grpc/homebrew-grpc/master/scripts/install
-[grpc.io]: http://www.grpc.io/docs/installation/csharp.html
-[Debian jessie-backports]:http://backports.debian.org/Instructions/
-[Helloworld example]:../../examples/csharp/helloworld
+[API Reference]: http://www.grpc.io/grpc/csharp/
+[Helloworld Example]: ../../examples/csharp/helloworld
+[RouteGuide Tutorial]: http://www.grpc.io/docs/tutorials/basic/csharp.html 
diff --git a/src/csharp/build_packages.bat b/src/csharp/build_packages.bat
index 1cc63da970..63f8c30bc7 100644
--- a/src/csharp/build_packages.bat
+++ b/src/csharp/build_packages.bat
@@ -41,12 +41,12 @@ set NUGET=C:\nuget\nuget.exe
 
 @rem Collect the artifacts built by the previous build step if running on Jenkins
 @rem TODO(jtattermusch): is there a better way to do this?
-xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=windows\artifacts\* Grpc.Core\windows_x86\
-xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=windows\artifacts\* Grpc.Core\windows_x64\
-xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=linux\artifacts\* Grpc.Core\linux_x86\
-xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=linux\artifacts\* Grpc.Core\linux_x64\
-xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=macos\artifacts\* Grpc.Core\macosx_x86\
-xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=macos\artifacts\* Grpc.Core\macosx_x64\
+xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=windows\artifacts\* nativelibs\windows_x86\
+xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=windows\artifacts\* nativelibs\windows_x64\
+xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=linux\artifacts\* nativelibs\linux_x86\
+xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=linux\artifacts\* nativelibs\linux_x64\
+xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=macos\artifacts\* nativelibs\macosx_x86\
+xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=macos\artifacts\* nativelibs\macosx_x64\
 
 @rem Collect protoc artifacts built by the previous build step
 xcopy /Y /I ..\..\architecture=x86,language=protoc,platform=windows\artifacts\* protoc_plugins\windows_x86\
diff --git a/src/csharp/ext/grpc_csharp_ext.c b/src/csharp/ext/grpc_csharp_ext.c
index 4782654250..9b8d050ea5 100644
--- a/src/csharp/ext/grpc_csharp_ext.c
+++ b/src/csharp/ext/grpc_csharp_ext.c
@@ -249,10 +249,12 @@ grpcsharp_batch_context_recv_initial_metadata(
 
 GPR_EXPORT intptr_t GPR_CALLTYPE grpcsharp_batch_context_recv_message_length(
     const grpcsharp_batch_context *ctx) {
+  grpc_byte_buffer_reader reader;
   if (!ctx->recv_message) {
     return -1;
   }
-  return (intptr_t)grpc_byte_buffer_length(ctx->recv_message);
+  grpc_byte_buffer_reader_init(&reader, ctx->recv_message);
+  return (intptr_t)grpc_byte_buffer_length(reader.buffer_out);
 }
 
 /*
diff --git a/src/csharp/grpc.native.csharp/grpc.native.csharp.nuspec b/src/csharp/grpc.native.csharp/grpc.native.csharp.nuspec
deleted file mode 100644
index cc688e2bc7..0000000000
--- a/src/csharp/grpc.native.csharp/grpc.native.csharp.nuspec
+++ /dev/null
@@ -1,27 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<package>
-  <metadata>
-    <id>grpc.native.csharp</id>
-    <version>$version$</version>
-    <authors>Google Inc.</authors>
-    <owners>grpc-packages</owners>
-    <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
-    <projectUrl>http://github.com/grpc/grpc</projectUrl>
-    <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <description>Native extension needed by gRPC C# library. This is not the package you are looking for, it is only meant to be used as a dependency.</description>
-    <releaseNotes>Release of gRPC C core $version$ libraries.</releaseNotes>
-    <copyright>Copyright 2015</copyright>
-    <title>gRPC C# Native Extension</title>
-    <summary>Native library required by gRPC C#</summary>
-    <tags>gRPC native</tags>
-  </metadata>
-  <files>
-    <file src="grpc.native.csharp.targets" target="\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" />
-    <file src="windows_x86/grpc_csharp_ext.dll" target="/build/native/bin/windows_x86/grpc_csharp_ext.dll" />
-    <file src="windows_x64/grpc_csharp_ext.dll" target="/build/native/bin/windows_x64/grpc_csharp_ext.dll" />
-    <file src="linux_x86/libgrpc_csharp_ext.so" target="/build/native/bin/linux_x86/libgrpc_csharp_ext.so" />
-    <file src="linux_x64/libgrpc_csharp_ext.so" target="/build/native/bin/linux_x64/libgrpc_csharp_ext.so" />
-    <file src="macosx_x86/libgrpc_csharp_ext.dylib" target="/build/native/bin/macosx_x86/libgrpc_csharp_ext.dylib" />
-    <file src="macosx_x64/libgrpc_csharp_ext.dylib" target="/build/native/bin/macosx_x64/libgrpc_csharp_ext.dylib" />
-  </files>
-</package>
diff --git a/src/node/interop/interop_server.js b/src/node/interop/interop_server.js
index 7280762305..05f52a1083 100644
--- a/src/node/interop/interop_server.js
+++ b/src/node/interop/interop_server.js
@@ -45,9 +45,6 @@ var testProto = grpc.load({
 var ECHO_INITIAL_KEY = 'x-grpc-test-echo-initial';
 var ECHO_TRAILING_KEY = 'x-grpc-test-echo-trailing-bin';
 
-var incompressible_data = fs.readFileSync(
-    __dirname + '/../../../test/cpp/interop/rnd.dat');
-
 /**
  * Create a buffer filled with size zeroes
  * @param {number} size The length of the buffer
@@ -88,15 +85,7 @@ function getEchoTrailer(call) {
 }
 
 function getPayload(payload_type, size) {
-  if (payload_type === 'RANDOM') {
-    payload_type = ['COMPRESSABLE',
-                    'UNCOMPRESSABLE'][Math.random() < 0.5 ? 0 : 1];
-  }
-  var body;
-  switch (payload_type) {
-    case 'COMPRESSABLE': body = zeroBuffer(size); break;
-    case 'UNCOMPRESSABLE': incompressible_data.slice(size); break;
-  }
+  var body = zeroBuffer(size);
   return {type: payload_type, body: body};
 }
 
diff --git a/src/objective-c/GRPCClient/GRPCCall+ChannelCredentials.h b/src/objective-c/GRPCClient/GRPCCall+ChannelCredentials.h
index 343dd48a14..ac2a37d75f 100644
--- a/src/objective-c/GRPCClient/GRPCCall+ChannelCredentials.h
+++ b/src/objective-c/GRPCClient/GRPCCall+ChannelCredentials.h
@@ -41,7 +41,7 @@
  */
 + (BOOL)setTLSPEMRootCerts:(nullable NSString *)pemRootCert
                    forHost:(nonnull NSString *)host
-                     error:(NSError **)errorPtr;
+                     error:(NSError * _Nullable * _Nullable)errorPtr;
 /**
  * Configures @c host with TLS/SSL Client Credentials and optionally trusted root Certificate
  * Authorities. If @c pemRootCerts is nil, the default CA Certificates bundled with gRPC will be
@@ -51,6 +51,6 @@
             withPrivateKey:(nullable NSString *)pemPrivateKey
              withCertChain:(nullable NSString *)pemCertChain
                    forHost:(nonnull NSString *)host
-                     error:(NSError **)errorPtr;
+                     error:(NSError * _Nullable * _Nullable)errorPtr;
 
 @end
diff --git a/src/objective-c/ProtoRPC/ProtoMethod.h b/src/objective-c/ProtoRPC/ProtoMethod.h
index f9fdbb35ff..ae3a2723fc 100644
--- a/src/objective-c/ProtoRPC/ProtoMethod.h
+++ b/src/objective-c/ProtoRPC/ProtoMethod.h
@@ -54,6 +54,9 @@ __attribute__((deprecated("Please use GRPCProtoMethod.")))
  * This subclass is empty now. Eventually we'll remove ProtoMethod class
  * to avoid potential naming conflict
  */
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
 @interface GRPCProtoMethod : ProtoMethod
+#pragma clang diagnostic pop
 
 @end
diff --git a/src/objective-c/ProtoRPC/ProtoRPC.h b/src/objective-c/ProtoRPC/ProtoRPC.h
index 5f91f6bce1..04fc1e45f1 100644
--- a/src/objective-c/ProtoRPC/ProtoRPC.h
+++ b/src/objective-c/ProtoRPC/ProtoRPC.h
@@ -56,6 +56,9 @@ __attribute__((deprecated("Please use GRPCProtoCall.")))
  * This subclass is empty now. Eventually we'll remove ProtoRPC class
  * to avoid potential naming conflict
  */
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
 @interface GRPCProtoCall : ProtoRPC
+#pragma clang diagnostic pop
 
 @end
diff --git a/src/objective-c/ProtoRPC/ProtoService.h b/src/objective-c/ProtoRPC/ProtoService.h
index 87d06e1ae5..7faae1b49c 100644
--- a/src/objective-c/ProtoRPC/ProtoService.h
+++ b/src/objective-c/ProtoRPC/ProtoService.h
@@ -55,6 +55,9 @@ __attribute__((deprecated("Please use GRPCProtoService.")))
  * This subclass is empty now. Eventually we'll remove ProtoService class
  * to avoid potential naming conflict
  */
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
 @interface GRPCProtoService : ProtoService
+#pragma clang diagnostic pop
 
 @end
diff --git a/src/objective-c/ProtoRPC/ProtoService.m b/src/objective-c/ProtoRPC/ProtoService.m
index 597c3cf0fe..9740190851 100644
--- a/src/objective-c/ProtoRPC/ProtoService.m
+++ b/src/objective-c/ProtoRPC/ProtoService.m
@@ -69,9 +69,9 @@
            requestsWriter:(GRXWriter *)requestsWriter
             responseClass:(Class)responseClass
        responsesWriteable:(id<GRXWriteable>)responsesWriteable {
-  ProtoMethod *methodName = [[ProtoMethod alloc] initWithPackage:_packageName
-                                                         service:_serviceName
-                                                          method:method];
+  GRPCProtoMethod *methodName = [[GRPCProtoMethod alloc] initWithPackage:_packageName
+                                                                 service:_serviceName
+                                                                  method:method];
   return [[ProtoRPC alloc] initWithHost:_host
                                  method:methodName
                          requestsWriter:requestsWriter
diff --git a/src/objective-c/examples/RemoteTestClient/RemoteTest.podspec b/src/objective-c/examples/RemoteTestClient/RemoteTest.podspec
index 5addf26fc4..107e6de4e2 100644
--- a/src/objective-c/examples/RemoteTestClient/RemoteTest.podspec
+++ b/src/objective-c/examples/RemoteTestClient/RemoteTest.podspec
@@ -2,6 +2,10 @@ Pod::Spec.new do |s|
   s.name     = "RemoteTest"
   s.version  = "0.0.1"
   s.license  = "New BSD"
+  s.authors  = { 'gRPC contributors' => 'grpc-io@googlegroups.com' }
+  s.homepage = "http://www.grpc.io/"
+  s.summary = "RemoteTest example"
+  s.source = { :git => 'https://github.com/grpc/grpc.git' }
 
   s.ios.deployment_target = '7.1'
   s.osx.deployment_target = '10.9'
diff --git a/src/objective-c/examples/Sample/Sample.xcodeproj/project.pbxproj b/src/objective-c/examples/Sample/Sample.xcodeproj/project.pbxproj
index 611eb6032d..5c2a6d14f9 100644
--- a/src/objective-c/examples/Sample/Sample.xcodeproj/project.pbxproj
+++ b/src/objective-c/examples/Sample/Sample.xcodeproj/project.pbxproj
@@ -7,16 +7,16 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		426A5020E0E158A101BCA1D9 /* libPods-Sample.a in Frameworks */ = {isa = PBXBuildFile; fileRef = C20055928615A6F8434E26B4 /* libPods-Sample.a */; };
 		6369A2701A9322E20015FC5C /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 6369A26F1A9322E20015FC5C /* main.m */; };
 		6369A2731A9322E20015FC5C /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 6369A2721A9322E20015FC5C /* AppDelegate.m */; };
 		6369A2761A9322E20015FC5C /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 6369A2751A9322E20015FC5C /* ViewController.m */; };
 		6369A2791A9322E20015FC5C /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 6369A2771A9322E20015FC5C /* Main.storyboard */; };
 		6369A27B1A9322E20015FC5C /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 6369A27A1A9322E20015FC5C /* Images.xcassets */; };
-		FC81FE63CA655031F3524EC0 /* libPods.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 2DC7B7C4C0410F43B9621631 /* libPods.a */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
-		2DC7B7C4C0410F43B9621631 /* libPods.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libPods.a; sourceTree = BUILT_PRODUCTS_DIR; };
+		5A8C9F4B28733B249DE4AB6D /* Pods-Sample.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Sample.release.xcconfig"; path = "Pods/Target Support Files/Pods-Sample/Pods-Sample.release.xcconfig"; sourceTree = "<group>"; };
 		6369A26A1A9322E20015FC5C /* Sample.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Sample.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		6369A26E1A9322E20015FC5C /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		6369A26F1A9322E20015FC5C /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
@@ -26,8 +26,8 @@
 		6369A2751A9322E20015FC5C /* ViewController.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = ViewController.m; sourceTree = "<group>"; };
 		6369A2781A9322E20015FC5C /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		6369A27A1A9322E20015FC5C /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
-		AC29DD6FCDF962F519FEBB0D /* Pods.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.debug.xcconfig; path = "Pods/Target Support Files/Pods/Pods.debug.xcconfig"; sourceTree = "<group>"; };
-		C68330F8D451CC6ACEABA09F /* Pods.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.release.xcconfig; path = "Pods/Target Support Files/Pods/Pods.release.xcconfig"; sourceTree = "<group>"; };
+		C20055928615A6F8434E26B4 /* libPods-Sample.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-Sample.a"; sourceTree = BUILT_PRODUCTS_DIR; };
+		E3C01DF315C4E7433BCEC6E6 /* Pods-Sample.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Sample.debug.xcconfig"; path = "Pods/Target Support Files/Pods-Sample/Pods-Sample.debug.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -35,7 +35,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				FC81FE63CA655031F3524EC0 /* libPods.a in Frameworks */,
+				426A5020E0E158A101BCA1D9 /* libPods-Sample.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -86,8 +86,8 @@
 		AB3331C9AE6488E61B2B094E /* Pods */ = {
 			isa = PBXGroup;
 			children = (
-				AC29DD6FCDF962F519FEBB0D /* Pods.debug.xcconfig */,
-				C68330F8D451CC6ACEABA09F /* Pods.release.xcconfig */,
+				E3C01DF315C4E7433BCEC6E6 /* Pods-Sample.debug.xcconfig */,
+				5A8C9F4B28733B249DE4AB6D /* Pods-Sample.release.xcconfig */,
 			);
 			name = Pods;
 			sourceTree = "<group>";
@@ -95,7 +95,7 @@
 		C4C2C5219053E079C9EFB930 /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
-				2DC7B7C4C0410F43B9621631 /* libPods.a */,
+				C20055928615A6F8434E26B4 /* libPods-Sample.a */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -107,11 +107,12 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 6369A28D1A9322E20015FC5C /* Build configuration list for PBXNativeTarget "Sample" */;
 			buildPhases = (
-				41F7486D8F66994B0BFB84AF /* Check Pods Manifest.lock */,
+				41F7486D8F66994B0BFB84AF /* [CP] Check Pods Manifest.lock */,
 				6369A2661A9322E20015FC5C /* Sources */,
 				6369A2671A9322E20015FC5C /* Frameworks */,
 				6369A2681A9322E20015FC5C /* Resources */,
-				04554623324BE4A838846086 /* Copy Pods Resources */,
+				04554623324BE4A838846086 /* [CP] Copy Pods Resources */,
+				C7FAD018D05AB5F0B0FE81E2 /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -167,29 +168,29 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
-		04554623324BE4A838846086 /* Copy Pods Resources */ = {
+		04554623324BE4A838846086 /* [CP] Copy Pods Resources */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Copy Pods Resources";
+			name = "[CP] Copy Pods Resources";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods/Pods-resources.sh\"\n";
+			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-Sample/Pods-Sample-resources.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
-		41F7486D8F66994B0BFB84AF /* Check Pods Manifest.lock */ = {
+		41F7486D8F66994B0BFB84AF /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Check Pods Manifest.lock";
+			name = "[CP] Check Pods Manifest.lock";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -197,6 +198,21 @@
 			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
+		C7FAD018D05AB5F0B0FE81E2 /* [CP] Embed Pods Frameworks */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "[CP] Embed Pods Frameworks";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-Sample/Pods-Sample-frameworks.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
 /* End PBXShellScriptBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
@@ -304,7 +320,7 @@
 		};
 		6369A28E1A9322E20015FC5C /* Debug */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = AC29DD6FCDF962F519FEBB0D /* Pods.debug.xcconfig */;
+			baseConfigurationReference = E3C01DF315C4E7433BCEC6E6 /* Pods-Sample.debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				INFOPLIST_FILE = Sample/Info.plist;
@@ -315,7 +331,7 @@
 		};
 		6369A28F1A9322E20015FC5C /* Release */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = C68330F8D451CC6ACEABA09F /* Pods.release.xcconfig */;
+			baseConfigurationReference = 5A8C9F4B28733B249DE4AB6D /* Pods-Sample.release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				INFOPLIST_FILE = Sample/Info.plist;
diff --git a/src/objective-c/examples/SwiftSample/SwiftSample.xcodeproj/project.pbxproj b/src/objective-c/examples/SwiftSample/SwiftSample.xcodeproj/project.pbxproj
index 2f5716082b..2a1b30f2cf 100644
--- a/src/objective-c/examples/SwiftSample/SwiftSample.xcodeproj/project.pbxproj
+++ b/src/objective-c/examples/SwiftSample/SwiftSample.xcodeproj/project.pbxproj
@@ -7,15 +7,14 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
-		253D3A297105CA46DA960A11 /* libPods.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DC58ACA18DCCB1553531B885 /* libPods.a */; };
 		633BFFC81B950B210007E424 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 633BFFC71B950B210007E424 /* AppDelegate.swift */; };
 		633BFFCA1B950B210007E424 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 633BFFC91B950B210007E424 /* ViewController.swift */; };
 		633BFFCD1B950B210007E424 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 633BFFCB1B950B210007E424 /* Main.storyboard */; };
 		633BFFCF1B950B210007E424 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 633BFFCE1B950B210007E424 /* Images.xcassets */; };
+		92EDB1408A1E1E7DDAB25D9C /* libPods-SwiftSample.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 69BB5C6CA3C1F97E007AC527 /* libPods-SwiftSample.a */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
-		12C7B447AA80E624D93B5C54 /* Pods.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.debug.xcconfig; path = "Pods/Target Support Files/Pods/Pods.debug.xcconfig"; sourceTree = "<group>"; };
 		633BFFC21B950B210007E424 /* SwiftSample.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = SwiftSample.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		633BFFC61B950B210007E424 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		633BFFC71B950B210007E424 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
@@ -23,8 +22,9 @@
 		633BFFCC1B950B210007E424 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		633BFFCE1B950B210007E424 /* Images.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Images.xcassets; sourceTree = "<group>"; };
 		6367AD231B951655007FD3A4 /* Bridging-Header.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "Bridging-Header.h"; sourceTree = "<group>"; };
-		C335CBC4C160E0D9EDEE646B /* Pods.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.release.xcconfig; path = "Pods/Target Support Files/Pods/Pods.release.xcconfig"; sourceTree = "<group>"; };
-		DC58ACA18DCCB1553531B885 /* libPods.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libPods.a; sourceTree = BUILT_PRODUCTS_DIR; };
+		69BB5C6CA3C1F97E007AC527 /* libPods-SwiftSample.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-SwiftSample.a"; sourceTree = BUILT_PRODUCTS_DIR; };
+		A7E614A494D89D01BB395761 /* Pods-SwiftSample.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-SwiftSample.debug.xcconfig"; path = "Pods/Target Support Files/Pods-SwiftSample/Pods-SwiftSample.debug.xcconfig"; sourceTree = "<group>"; };
+		C314E3E246AF23AC29B38FCF /* Pods-SwiftSample.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-SwiftSample.release.xcconfig"; path = "Pods/Target Support Files/Pods-SwiftSample/Pods-SwiftSample.release.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -32,7 +32,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				253D3A297105CA46DA960A11 /* libPods.a in Frameworks */,
+				92EDB1408A1E1E7DDAB25D9C /* libPods-SwiftSample.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -42,8 +42,8 @@
 		31F283C976AE97586C17CCD9 /* Pods */ = {
 			isa = PBXGroup;
 			children = (
-				12C7B447AA80E624D93B5C54 /* Pods.debug.xcconfig */,
-				C335CBC4C160E0D9EDEE646B /* Pods.release.xcconfig */,
+				A7E614A494D89D01BB395761 /* Pods-SwiftSample.debug.xcconfig */,
+				C314E3E246AF23AC29B38FCF /* Pods-SwiftSample.release.xcconfig */,
 			);
 			name = Pods;
 			sourceTree = "<group>";
@@ -90,7 +90,7 @@
 		9D63A7F6423989BA306810CA /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
-				DC58ACA18DCCB1553531B885 /* libPods.a */,
+				69BB5C6CA3C1F97E007AC527 /* libPods-SwiftSample.a */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -102,12 +102,12 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 633BFFE11B950B210007E424 /* Build configuration list for PBXNativeTarget "SwiftSample" */;
 			buildPhases = (
-				6BEEB33CA2705D7D2F2210E6 /* Check Pods Manifest.lock */,
+				6BEEB33CA2705D7D2F2210E6 /* [CP] Check Pods Manifest.lock */,
 				633BFFBE1B950B210007E424 /* Sources */,
 				633BFFBF1B950B210007E424 /* Frameworks */,
 				633BFFC01B950B210007E424 /* Resources */,
-				AC2F6F9AB1C090BB0BEE6E4D /* Copy Pods Resources */,
-				A1738A987353B0BF2C64F0F7 /* Embed Pods Frameworks */,
+				AC2F6F9AB1C090BB0BEE6E4D /* [CP] Copy Pods Resources */,
+				A1738A987353B0BF2C64F0F7 /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -164,14 +164,14 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
-		6BEEB33CA2705D7D2F2210E6 /* Check Pods Manifest.lock */ = {
+		6BEEB33CA2705D7D2F2210E6 /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Check Pods Manifest.lock";
+			name = "[CP] Check Pods Manifest.lock";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -179,34 +179,34 @@
 			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
-		A1738A987353B0BF2C64F0F7 /* Embed Pods Frameworks */ = {
+		A1738A987353B0BF2C64F0F7 /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Embed Pods Frameworks";
+			name = "[CP] Embed Pods Frameworks";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods/Pods-frameworks.sh\"\n";
+			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-SwiftSample/Pods-SwiftSample-frameworks.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
-		AC2F6F9AB1C090BB0BEE6E4D /* Copy Pods Resources */ = {
+		AC2F6F9AB1C090BB0BEE6E4D /* [CP] Copy Pods Resources */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
 			);
 			inputPaths = (
 			);
-			name = "Copy Pods Resources";
+			name = "[CP] Copy Pods Resources";
 			outputPaths = (
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods/Pods-resources.sh\"\n";
+			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-SwiftSample/Pods-SwiftSample-resources.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
 /* End PBXShellScriptBuildPhase section */
@@ -320,7 +320,7 @@
 		};
 		633BFFE21B950B210007E424 /* Debug */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 12C7B447AA80E624D93B5C54 /* Pods.debug.xcconfig */;
+			baseConfigurationReference = A7E614A494D89D01BB395761 /* Pods-SwiftSample.debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				INFOPLIST_FILE = Info.plist;
@@ -333,7 +333,7 @@
 		};
 		633BFFE31B950B210007E424 /* Release */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = C335CBC4C160E0D9EDEE646B /* Pods.release.xcconfig */;
+			baseConfigurationReference = C314E3E246AF23AC29B38FCF /* Pods-SwiftSample.release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				INFOPLIST_FILE = Info.plist;
diff --git a/src/objective-c/tests/GRPCClientTests.m b/src/objective-c/tests/GRPCClientTests.m
index 9a8d425324..1167a715bb 100644
--- a/src/objective-c/tests/GRPCClientTests.m
+++ b/src/objective-c/tests/GRPCClientTests.m
@@ -48,9 +48,9 @@ static NSString * const kPackage = @"grpc.testing";
 static NSString * const kService = @"TestService";
 static NSString * const kRemoteSSLHost = @"grpc-test.sandbox.googleapis.com";
 
-static ProtoMethod *kInexistentMethod;
-static ProtoMethod *kEmptyCallMethod;
-static ProtoMethod *kUnaryCallMethod;
+static GRPCProtoMethod *kInexistentMethod;
+static GRPCProtoMethod *kEmptyCallMethod;
+static GRPCProtoMethod *kUnaryCallMethod;
 
 /** Observer class for testing that responseMetadata is KVO-compliant */
 @interface PassthroughObserver : NSObject
@@ -109,15 +109,15 @@ static ProtoMethod *kUnaryCallMethod;
   [GRPCCall useInsecureConnectionsForHost:kHostAddress];
 
   // This method isn't implemented by the remote server.
-  kInexistentMethod = [[ProtoMethod alloc] initWithPackage:kPackage
-                                                   service:kService
-                                                    method:@"Inexistent"];
-  kEmptyCallMethod = [[ProtoMethod alloc] initWithPackage:kPackage
-                                                  service:kService
-                                                   method:@"EmptyCall"];
-  kUnaryCallMethod = [[ProtoMethod alloc] initWithPackage:kPackage
-                                                  service:kService
-                                                   method:@"UnaryCall"];
+  kInexistentMethod = [[GRPCProtoMethod alloc] initWithPackage:kPackage
+                                                       service:kService
+                                                        method:@"Inexistent"];
+  kEmptyCallMethod = [[GRPCProtoMethod alloc] initWithPackage:kPackage
+                                                      service:kService
+                                                       method:@"EmptyCall"];
+  kUnaryCallMethod = [[GRPCProtoMethod alloc] initWithPackage:kPackage
+                                                      service:kService
+                                                       method:@"UnaryCall"];
 }
 
 - (void)testConnectionToRemoteServer {
@@ -303,9 +303,9 @@ static ProtoMethod *kUnaryCallMethod;
 
   // Try to set parameters to nil for GRPCCall. This should cause an exception
   @try {
-    GRPCCall *call = [[GRPCCall alloc] initWithHost:nil
-                                               path:nil
-                                     requestsWriter:nil];
+    (void)[[GRPCCall alloc] initWithHost:nil
+                                    path:nil
+                          requestsWriter:nil];
     XCTFail(@"Did not receive an exception when parameters are nil");
   } @catch(NSException *theException) {
     NSLog(@"Received exception as expected: %@", theException.name);
@@ -316,9 +316,9 @@ static ProtoMethod *kUnaryCallMethod;
   GRXWriter *requestsWriter = [GRXWriter emptyWriter];
   [requestsWriter finishWithError:nil];
   @try {
-    GRPCCall *call = [[GRPCCall alloc] initWithHost:kHostAddress
-                                               path:kUnaryCallMethod.HTTPPath
-                                     requestsWriter:requestsWriter];
+    (void)[[GRPCCall alloc] initWithHost:kHostAddress
+                                    path:kUnaryCallMethod.HTTPPath
+                          requestsWriter:requestsWriter];
     XCTFail(@"Did not receive an exception when GRXWriter has incorrect state.");
   } @catch(NSException *theException) {
     NSLog(@"Received exception as expected: %@", theException.name);
diff --git a/src/objective-c/tests/InteropTests.m b/src/objective-c/tests/InteropTests.m
index 781c500f73..15ce120c55 100644
--- a/src/objective-c/tests/InteropTests.m
+++ b/src/objective-c/tests/InteropTests.m
@@ -58,7 +58,7 @@
                  requestedResponseSize:(NSNumber *)responseSize {
   RMTStreamingOutputCallRequest *request = [self message];
   RMTResponseParameters *parameters = [RMTResponseParameters message];
-  parameters.size = responseSize.integerValue;
+  parameters.size = (int)responseSize.integerValue;
   [request.responseParametersArray addObject:parameters];
   request.payload.body = [NSMutableData dataWithLength:payloadSize.unsignedIntegerValue];
   return request;
@@ -80,7 +80,9 @@
 
 #pragma mark Tests
 
+#ifdef GRPC_COMPILE_WITH_CRONET
 static cronet_engine *cronetEngine = NULL;
+#endif
 
 @implementation InteropTests {
   RMTTestService *_service;
@@ -186,7 +188,7 @@ static cronet_engine *cronetEngine = NULL;
   RMTStreamingOutputCallRequest *request = [RMTStreamingOutputCallRequest message];
   for (NSNumber *size in expectedSizes) {
     RMTResponseParameters *parameters = [RMTResponseParameters message];
-    parameters.size = [size integerValue];
+    parameters.size = (int)[size integerValue];
     [request.responseParametersArray addObject:parameters];
   }
 
@@ -282,9 +284,9 @@ static cronet_engine *cronetEngine = NULL;
   // A buffered pipe to which we never write any value acts as a writer that just hangs.
   GRXBufferedPipe *requestsBuffer = [[GRXBufferedPipe alloc] init];
 
-  ProtoRPC *call = [_service RPCToStreamingInputCallWithRequestsWriter:requestsBuffer
-                                                               handler:^(RMTStreamingInputCallResponse *response,
-                                                                         NSError *error) {
+  GRPCProtoCall *call = [_service RPCToStreamingInputCallWithRequestsWriter:requestsBuffer
+                                                                    handler:^(RMTStreamingInputCallResponse *response,
+                                                                              NSError *error) {
     XCTAssertEqual(error.code, GRPC_STATUS_CANCELLED);
     [expectation fulfill];
   }];
@@ -313,7 +315,7 @@ static cronet_engine *cronetEngine = NULL;
 
   [requestsBuffer writeValue:request];
 
-  __block ProtoRPC *call =
+  __block GRPCProtoCall *call =
       [_service RPCToFullDuplexCallWithRequestsWriter:requestsBuffer
                                          eventHandler:^(BOOL done,
                                                         RMTStreamingOutputCallResponse *response,
diff --git a/src/objective-c/tests/Podfile b/src/objective-c/tests/Podfile
index a7a88a3b9d..6d5f94cbda 100644
--- a/src/objective-c/tests/Podfile
+++ b/src/objective-c/tests/Podfile
@@ -4,11 +4,11 @@ platform :ios, '8.0'
 install! 'cocoapods', :deterministic_uuids => false
 
 def shared_pods
-	pod 'Protobuf', :path => "../../../third_party/protobuf"
-	pod 'BoringSSL', :podspec => ".."
-	pod 'CronetFramework', :podspec => ".."
-	pod 'gRPC', :path => "../../.."
-	pod 'RemoteTest', :path => "RemoteTestClient"
+  pod 'Protobuf', :path => "../../../third_party/protobuf", :inhibit_warnings => true
+  pod 'BoringSSL', :podspec => "..", :inhibit_warnings => true
+  pod 'CronetFramework', :podspec => ".."
+  pod 'gRPC', :path => "../../.."
+  pod 'RemoteTest', :path => "RemoteTestClient"
 end
 
 target 'Tests' do
@@ -34,3 +34,19 @@ end
 target 'InteropTestsLocalCleartext' do
 	shared_pods
 end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      config.build_settings['GCC_TREAT_WARNINGS_AS_ERRORS'] = 'YES'
+    end
+    if target.name == 'gRPC'
+      target.build_configurations.each do |config|
+        # TODO(zyc) Remove this setting after the issue is resolved
+        # GPR_UNREACHABLE_CODE causes "Control may reach end of non-void
+        # function" warning
+        config.build_settings['GCC_WARN_ABOUT_RETURN_TYPE'] = 'NO'
+      end
+    end
+  end
+end
diff --git a/src/objective-c/tests/Tests.xcodeproj/project.pbxproj b/src/objective-c/tests/Tests.xcodeproj/project.pbxproj
index 89e0ea60b9..e895fe6c79 100644
--- a/src/objective-c/tests/Tests.xcodeproj/project.pbxproj
+++ b/src/objective-c/tests/Tests.xcodeproj/project.pbxproj
@@ -893,6 +893,7 @@
 					"$(inherited)",
 				);
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
+				GCC_TREAT_WARNINGS_AS_ERRORS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
@@ -929,6 +930,7 @@
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_TREAT_WARNINGS_AS_ERRORS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
@@ -946,6 +948,7 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = 060EF32D7EC0DF67ED617507 /* Pods-Tests.debug.xcconfig */;
 			buildSettings = {
+				GCC_TREAT_WARNINGS_AS_ERRORS = YES;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 			};
@@ -955,6 +958,7 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = E6733B838B28453434B556E2 /* Pods-Tests.release.xcconfig */;
 			buildSettings = {
+				GCC_TREAT_WARNINGS_AS_ERRORS = YES;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 			};
diff --git a/src/proto/grpc/binary_log/v1alpha/log.proto b/src/proto/grpc/binary_log/v1alpha/log.proto
index 83166cd410..46656109bc 100644
--- a/src/proto/grpc/binary_log/v1alpha/log.proto
+++ b/src/proto/grpc/binary_log/v1alpha/log.proto
@@ -29,20 +29,20 @@
 
 syntax = "proto3";
 
-import "google/protobuf/timestamp.proto"
+import "google/protobuf/timestamp.proto";
 
 package grpc.binary_log.v1alpha;
 
 enum Direction {
-  SERVER_SEND;
-  SERVER_RECV;
-  CLIENT_SEND;
-  CLIENT_RECV;
+  SERVER_SEND = 0;
+  SERVER_RECV = 1;
+  CLIENT_SEND = 2;
+  CLIENT_RECV = 3;
 }
 
 message KeyValuePair {
-  string key;
-  string value;
+  string key = 1;
+  string value = 2;
 }
 
 // Any sort of metadata that may be sent in either direction during a call
diff --git a/src/proto/grpc/testing/messages.proto b/src/proto/grpc/testing/messages.proto
index e1090156ab..64998c2f23 100644
--- a/src/proto/grpc/testing/messages.proto
+++ b/src/proto/grpc/testing/messages.proto
@@ -34,17 +34,24 @@ syntax = "proto3";
 
 package grpc.testing;
 
+// TODO(dgq): Go back to using well-known types once
+// https://github.com/grpc/grpc/issues/6980 has been fixed.
+// import "google/protobuf/wrappers.proto";
+message BoolValue {
+  // The bool value.
+  bool value = 1;
+}
+
+// DEPRECATED, don't use. To be removed shortly.
 // The type of payload that should be returned.
 enum PayloadType {
   // Compressable text format.
   COMPRESSABLE = 0;
-
-  // Uncompressable binary format.
-  UNCOMPRESSABLE = 1;
 }
 
 // A block of data, to simply increase gRPC message size.
 message Payload {
+  // DEPRECATED, don't use. To be removed shortly.
   // The type of data in body.
   PayloadType type = 1;
   // Primary contents of payload.
@@ -60,12 +67,12 @@ message EchoStatus {
 
 // Unary request.
 message SimpleRequest {
+  // DEPRECATED, don't use. To be removed shortly.
   // Desired payload type in the response from the server.
   // If response_type is RANDOM, server randomly chooses one from other formats.
   PayloadType response_type = 1;
 
   // Desired payload size in the response from the server.
-  // If response_type is COMPRESSABLE, this denotes the size before compression.
   int32 response_size = 2;
 
   // Optional input payload sent along with the request.
@@ -77,11 +84,17 @@ message SimpleRequest {
   // Whether SimpleResponse should include OAuth scope.
   bool fill_oauth_scope = 5;
 
-  // Whether to request the server to compress the response.
-  bool request_compressed_response = 6;
+  // Whether to request the server to compress the response. This field is
+  // "nullable" in order to interoperate seamlessly with clients not able to
+  // implement the full compression tests by introspecting the call to verify
+  // the response's compression status.
+  BoolValue response_compressed = 6;
 
   // Whether server should return a given status
   EchoStatus response_status = 7;
+
+  // Whether the server should expect this request to be compressed.
+  BoolValue expect_compressed = 8;
 }
 
 // Unary response, as configured by the request.
@@ -100,6 +113,12 @@ message StreamingInputCallRequest {
   // Optional input payload sent along with the request.
   Payload payload = 1;
 
+  // Whether the server should expect this request to be compressed. This field
+  // is "nullable" in order to interoperate seamlessly with servers not able to
+  // implement the full compression tests by introspecting the call to verify
+  // the request's compression status.
+  BoolValue expect_compressed = 2;
+
   // Not expecting any payload from the response.
 }
 
@@ -112,16 +131,22 @@ message StreamingInputCallResponse {
 // Configuration for a particular response.
 message ResponseParameters {
   // Desired payload sizes in responses from the server.
-  // If response_type is COMPRESSABLE, this denotes the size before compression.
   int32 size = 1;
 
   // Desired interval between consecutive responses in the response stream in
   // microseconds.
   int32 interval_us = 2;
+
+  // Whether to request the server to compress the response. This field is
+  // "nullable" in order to interoperate seamlessly with clients not able to
+  // implement the full compression tests by introspecting the call to verify
+  // the response's compression status.
+  BoolValue compressed = 3;
 }
 
 // Server-streaming request.
 message StreamingOutputCallRequest {
+  // DEPRECATED, don't use. To be removed shortly.
   // Desired payload type in the response from the server.
   // If response_type is RANDOM, the payload from each response in the stream
   // might be of different types. This is to simulate a mixed type of payload
@@ -134,9 +159,6 @@ message StreamingOutputCallRequest {
   // Optional input payload sent along with the request.
   Payload payload = 3;
 
-  // Whether to request the server to compress the response.
-  bool request_compressed_response = 6;
-
   // Whether server should return a given status
   EchoStatus response_status = 7;
 }
diff --git a/src/python/grpcio/commands.py b/src/python/grpcio/commands.py
index 3e974eba0a..f498ed4190 100644
--- a/src/python/grpcio/commands.py
+++ b/src/python/grpcio/commands.py
@@ -182,6 +182,8 @@ class BuildProtoModules(setuptools.Command):
           '--plugin=protoc-gen-python-grpc={}'.format(
               self.grpc_python_plugin_command),
           '-I {}'.format(GRPC_STEM),
+          '-I .',
+          '-I {}/third_party/protobuf/src'.format(GRPC_STEM),
           '--python_out={}'.format(PROTO_GEN_STEM),
           '--python-grpc_out={}'.format(PROTO_GEN_STEM),
       ] + [path]
diff --git a/src/python/grpcio/grpc/__init__.py b/src/python/grpcio/grpc/__init__.py
index d07a7a721d..b3eeaad1f7 100644
--- a/src/python/grpcio/grpc/__init__.py
+++ b/src/python/grpcio/grpc/__init__.py
@@ -436,9 +436,7 @@ class UnaryUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a unary-unary RPC."""
 
   @abc.abstractmethod
-  def __call__(
-      self, request, timeout=None, metadata=None, credentials=None,
-      with_call=False):
+  def __call__(self, request, timeout=None, metadata=None, credentials=None):
     """Synchronously invokes the underlying RPC.
 
     Args:
@@ -447,12 +445,30 @@ class UnaryUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
       metadata: An optional sequence of pairs of bytes to be transmitted to the
         service-side of the RPC.
       credentials: An optional CallCredentials for the RPC.
-      with_call: Whether or not to include return a Call for the RPC in addition
-        to the response.
 
     Returns:
-      The response value for the RPC, and a Call for the RPC if with_call was
-        set to True at invocation.
+      The response value for the RPC.
+
+    Raises:
+      RpcError: Indicating that the RPC terminated with non-OK status. The
+        raised RpcError will also be a Call for the RPC affording the RPC's
+        metadata, status code, and details.
+    """
+    raise NotImplementedError()
+
+  @abc.abstractmethod
+  def with_call(self, request, timeout=None, metadata=None, credentials=None):
+    """Synchronously invokes the underlying RPC.
+
+    Args:
+      request: The request value for the RPC.
+      timeout: An optional durating of time in seconds to allow for the RPC.
+      metadata: An optional sequence of pairs of bytes to be transmitted to the
+        service-side of the RPC.
+      credentials: An optional CallCredentials for the RPC.
+
+    Returns:
+      The response value for the RPC and a Call value for the RPC.
 
     Raises:
       RpcError: Indicating that the RPC terminated with non-OK status. The
@@ -508,8 +524,7 @@ class StreamUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
 
   @abc.abstractmethod
   def __call__(
-      self, request_iterator, timeout=None, metadata=None, credentials=None,
-      with_call=False):
+      self, request_iterator, timeout=None, metadata=None, credentials=None):
     """Synchronously invokes the underlying RPC.
 
     Args:
@@ -518,8 +533,6 @@ class StreamUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
       metadata: An optional sequence of pairs of bytes to be transmitted to the
         service-side of the RPC.
       credentials: An optional CallCredentials for the RPC.
-      with_call: Whether or not to include return a Call for the RPC in addition
-        to the response.
 
     Returns:
       The response value for the RPC, and a Call for the RPC if with_call was
@@ -533,6 +546,28 @@ class StreamUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
     raise NotImplementedError()
 
   @abc.abstractmethod
+  def with_call(
+      self, request_iterator, timeout=None, metadata=None, credentials=None):
+    """Synchronously invokes the underlying RPC.
+
+    Args:
+      request_iterator: An iterator that yields request values for the RPC.
+      timeout: An optional duration of time in seconds to allow for the RPC.
+      metadata: An optional sequence of pairs of bytes to be transmitted to the
+        service-side of the RPC.
+      credentials: An optional CallCredentials for the RPC.
+
+    Returns:
+      The response value for the RPC and a Call for the RPC.
+
+    Raises:
+      RpcError: Indicating that the RPC terminated with non-OK status. The
+        raised RpcError will also be a Call for the RPC affording the RPC's
+        metadata, status code, and details.
+    """
+    raise NotImplementedError()
+
+  @abc.abstractmethod
   def future(
       self, request_iterator, timeout=None, metadata=None, credentials=None):
     """Asynchronously invokes the underlying RPC.
diff --git a/src/python/grpcio/grpc/_channel.py b/src/python/grpcio/grpc/_channel.py
index 7cdd542de2..1f34beeb2c 100644
--- a/src/python/grpcio/grpc/_channel.py
+++ b/src/python/grpcio/grpc/_channel.py
@@ -449,9 +449,7 @@ class _UnaryUnaryMultiCallable(grpc.UnaryUnaryMultiCallable):
       )
       return state, operations, deadline, deadline_timespec, None
 
-  def __call__(
-      self, request, timeout=None, metadata=None, credentials=None,
-      with_call=False):
+  def _blocking(self, request, timeout, metadata, credentials):
     state, operations, deadline, deadline_timespec, rendezvous = self._prepare(
         request, timeout, metadata)
     if rendezvous:
@@ -464,7 +462,15 @@ class _UnaryUnaryMultiCallable(grpc.UnaryUnaryMultiCallable):
         call.set_credentials(credentials._credentials)
       call.start_batch(cygrpc.Operations(operations), None)
       _handle_event(completion_queue.poll(), state, self._response_deserializer)
-      return _end_unary_response_blocking(state, with_call, deadline)
+      return state, deadline
+
+  def __call__(self, request, timeout=None, metadata=None, credentials=None):
+    state, deadline, = self._blocking(request, timeout, metadata, credentials)
+    return _end_unary_response_blocking(state, False, deadline)
+
+  def with_call(self, request, timeout=None, metadata=None, credentials=None):
+    state, deadline, = self._blocking(request, timeout, metadata, credentials)
+    return _end_unary_response_blocking(state, True, deadline)
 
   def future(self, request, timeout=None, metadata=None, credentials=None):
     state, operations, deadline, deadline_timespec, rendezvous = self._prepare(
@@ -532,9 +538,7 @@ class _StreamUnaryMultiCallable(grpc.StreamUnaryMultiCallable):
     self._request_serializer = request_serializer
     self._response_deserializer = response_deserializer
 
-  def __call__(
-      self, request_iterator, timeout=None, metadata=None, credentials=None,
-      with_call=False):
+  def _blocking(self, request_iterator, timeout, metadata, credentials):
     deadline, deadline_timespec = _deadline(timeout)
     state = _RPCState(_STREAM_UNARY_INITIAL_DUE, None, None, None, None)
     completion_queue = cygrpc.CompletionQueue()
@@ -563,7 +567,19 @@ class _StreamUnaryMultiCallable(grpc.StreamUnaryMultiCallable):
         state.condition.notify_all()
         if not state.due:
           break
-    return _end_unary_response_blocking(state, with_call, deadline)
+    return state, deadline
+
+  def __call__(
+      self, request_iterator, timeout=None, metadata=None, credentials=None):
+    state, deadline, = self._blocking(
+        request_iterator, timeout, metadata, credentials)
+    return _end_unary_response_blocking(state, False, deadline)
+
+  def with_call(
+      self, request_iterator, timeout=None, metadata=None, credentials=None):
+    state, deadline, = self._blocking(
+        request_iterator, timeout, metadata, credentials)
+    return _end_unary_response_blocking(state, True, deadline)
 
   def future(
       self, request_iterator, timeout=None, metadata=None, credentials=None):
diff --git a/src/python/grpcio/grpc/beta/_client_adaptations.py b/src/python/grpcio/grpc/beta/_client_adaptations.py
index 024808c540..56456cc117 100644
--- a/src/python/grpcio/grpc/beta/_client_adaptations.py
+++ b/src/python/grpcio/grpc/beta/_client_adaptations.py
@@ -186,9 +186,9 @@ def _blocking_unary_unary(
         response_deserializer=response_deserializer)
     effective_metadata = _effective_metadata(metadata, metadata_transformer)
     if with_call:
-      response, call = multi_callable(
+      response, call = multi_callable.with_call(
           request, timeout=timeout, metadata=effective_metadata,
-          credentials=_credentials(protocol_options), with_call=True)
+          credentials=_credentials(protocol_options))
       return response, _Rendezvous(None, None, call)
     else:
       return multi_callable(
@@ -237,9 +237,9 @@ def _blocking_stream_unary(
         response_deserializer=response_deserializer)
     effective_metadata = _effective_metadata(metadata, metadata_transformer)
     if with_call:
-      response, call = multi_callable(
+      response, call = multi_callable.with_call(
           request_iterator, timeout=timeout, metadata=effective_metadata,
-          credentials=_credentials(protocol_options), with_call=True)
+          credentials=_credentials(protocol_options))
       return response, _Rendezvous(None, None, call)
     else:
       return multi_callable(
diff --git a/src/python/grpcio/tests/tests.json b/src/python/grpcio/tests/tests.json
index 8e509621a8..e384a2fc13 100644
--- a/src/python/grpcio/tests/tests.json
+++ b/src/python/grpcio/tests/tests.json
@@ -24,6 +24,7 @@
   "_implementations_test.ChannelCredentialsTest", 
   "_insecure_interop_test.InsecureInteropTest", 
   "_logging_pool_test.LoggingPoolTest", 
+  "_metadata_code_details_test.MetadataCodeDetailsTest",
   "_metadata_test.MetadataTest",
   "_not_found_test.NotFoundTest", 
   "_python_plugin_test.PythonPluginTest",
diff --git a/src/python/grpcio/tests/unit/_channel_connectivity_test.py b/src/python/grpcio/tests/unit/_channel_connectivity_test.py
index a1575efada..ae8de523ec 100644
--- a/src/python/grpcio/tests/unit/_channel_connectivity_test.py
+++ b/src/python/grpcio/tests/unit/_channel_connectivity_test.py
@@ -135,12 +135,12 @@ class ChannelConnectivityTest(unittest.TestCase):
     self.assertNotIn(
         grpc.ChannelConnectivity.TRANSIENT_FAILURE, third_connectivities)
     self.assertNotIn(
-        grpc.ChannelConnectivity.FATAL_FAILURE, third_connectivities)
+        grpc.ChannelConnectivity.SHUTDOWN, third_connectivities)
     self.assertNotIn(
         grpc.ChannelConnectivity.TRANSIENT_FAILURE,
         fourth_connectivities)
     self.assertNotIn(
-        grpc.ChannelConnectivity.FATAL_FAILURE, fourth_connectivities)
+        grpc.ChannelConnectivity.SHUTDOWN, fourth_connectivities)
 
   def test_reachable_then_unreachable_channel_connectivity(self):
     server = _server.Server((), futures.ThreadPoolExecutor(max_workers=0))
diff --git a/src/python/grpcio/tests/unit/_metadata_code_details_test.py b/src/python/grpcio/tests/unit/_metadata_code_details_test.py
new file mode 100644
index 0000000000..dd74268cbf
--- /dev/null
+++ b/src/python/grpcio/tests/unit/_metadata_code_details_test.py
@@ -0,0 +1,523 @@
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Tests application-provided metadata, status code, and details."""
+
+import threading
+import unittest
+
+import grpc
+from grpc.framework.foundation import logging_pool
+
+from tests.unit import test_common
+from tests.unit.framework.common import test_constants
+from tests.unit.framework.common import test_control
+
+_SERIALIZED_REQUEST = b'\x46\x47\x48'
+_SERIALIZED_RESPONSE = b'\x49\x50\x51'
+
+_REQUEST_SERIALIZER = lambda unused_request: _SERIALIZED_REQUEST
+_REQUEST_DESERIALIZER = lambda unused_serialized_request: object()
+_RESPONSE_SERIALIZER = lambda unused_response: _SERIALIZED_RESPONSE
+_RESPONSE_DESERIALIZER = lambda unused_serialized_resopnse: object()
+
+_SERVICE = b'test.TestService'
+_UNARY_UNARY = b'UnaryUnary'
+_UNARY_STREAM = b'UnaryStream'
+_STREAM_UNARY = b'StreamUnary'
+_STREAM_STREAM = b'StreamStream'
+
+_CLIENT_METADATA = (
+    (b'client-md-key', b'client-md-key'),
+    (b'client-md-key-bin', b'\x00\x01')
+)
+
+_SERVER_INITIAL_METADATA = (
+    (b'server-initial-md-key', b'server-initial-md-value'),
+    (b'server-initial-md-key-bin', b'\x00\x02')
+)
+
+_SERVER_TRAILING_METADATA = (
+    (b'server-trailing-md-key', b'server-trailing-md-value'),
+    (b'server-trailing-md-key-bin', b'\x00\x03')
+)
+
+_NON_OK_CODE = grpc.StatusCode.NOT_FOUND
+_DETAILS = b'Test details!'
+
+
+class _Servicer(object):
+
+  def __init__(self):
+    self._lock = threading.Lock()
+    self._code = None
+    self._details = None
+    self._exception = False
+    self._return_none = False
+    self._received_client_metadata = None
+
+  def unary_unary(self, request, context):
+    with self._lock:
+      self._received_client_metadata = context.invocation_metadata()
+      context.send_initial_metadata(_SERVER_INITIAL_METADATA)
+      context.set_trailing_metadata(_SERVER_TRAILING_METADATA)
+      if self._code is not None:
+        context.set_code(self._code)
+      if self._details is not None:
+        context.set_details(self._details)
+      if self._exception:
+        raise test_control.Defect()
+      else:
+        return None if self._return_none else object()
+
+  def unary_stream(self, request, context):
+    with self._lock:
+      self._received_client_metadata = context.invocation_metadata()
+      context.send_initial_metadata(_SERVER_INITIAL_METADATA)
+      context.set_trailing_metadata(_SERVER_TRAILING_METADATA)
+      if self._code is not None:
+        context.set_code(self._code)
+      if self._details is not None:
+        context.set_details(self._details)
+      for _ in range(test_constants.STREAM_LENGTH // 2):
+        yield _SERIALIZED_RESPONSE
+      if self._exception:
+        raise test_control.Defect()
+
+  def stream_unary(self, request_iterator, context):
+    with self._lock:
+      self._received_client_metadata = context.invocation_metadata()
+      context.send_initial_metadata(_SERVER_INITIAL_METADATA)
+      context.set_trailing_metadata(_SERVER_TRAILING_METADATA)
+      if self._code is not None:
+        context.set_code(self._code)
+      if self._details is not None:
+        context.set_details(self._details)
+      # TODO(https://github.com/grpc/grpc/issues/6891): just ignore the
+      # request iterator.
+      for ignored_request in request_iterator:
+        pass
+      if self._exception:
+        raise test_control.Defect()
+      else:
+        return None if self._return_none else _SERIALIZED_RESPONSE
+
+  def stream_stream(self, request_iterator, context):
+    with self._lock:
+      self._received_client_metadata = context.invocation_metadata()
+      context.send_initial_metadata(_SERVER_INITIAL_METADATA)
+      context.set_trailing_metadata(_SERVER_TRAILING_METADATA)
+      if self._code is not None:
+        context.set_code(self._code)
+      if self._details is not None:
+        context.set_details(self._details)
+      # TODO(https://github.com/grpc/grpc/issues/6891): just ignore the
+      # request iterator.
+      for ignored_request in request_iterator:
+        pass
+      for _ in range(test_constants.STREAM_LENGTH // 3):
+        yield object()
+      if self._exception:
+        raise test_control.Defect()
+
+  def set_code(self, code):
+    with self._lock:
+      self._code = code
+
+  def set_details(self, details):
+    with self._lock:
+      self._details = details
+
+  def set_exception(self):
+    with self._lock:
+      self._exception = True
+
+  def set_return_none(self):
+    with self._lock:
+      self._return_none = True
+
+  def received_client_metadata(self):
+    with self._lock:
+      return self._received_client_metadata
+
+
+def _generic_handler(servicer):
+  method_handlers = {
+      _UNARY_UNARY: grpc.unary_unary_rpc_method_handler(
+          servicer.unary_unary, request_deserializer=_REQUEST_DESERIALIZER,
+          response_serializer=_RESPONSE_SERIALIZER),
+      _UNARY_STREAM: grpc.unary_stream_rpc_method_handler(
+          servicer.unary_stream),
+      _STREAM_UNARY: grpc.stream_unary_rpc_method_handler(
+          servicer.stream_unary),
+      _STREAM_STREAM: grpc.stream_stream_rpc_method_handler(
+          servicer.stream_stream, request_deserializer=_REQUEST_DESERIALIZER,
+          response_serializer=_RESPONSE_SERIALIZER),
+  }
+  return grpc.method_handlers_generic_handler(_SERVICE, method_handlers)
+
+
+class MetadataCodeDetailsTest(unittest.TestCase):
+
+  def setUp(self):
+    self._servicer = _Servicer()
+    self._server_pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY)
+    self._server = grpc.server(
+        (_generic_handler(self._servicer),), self._server_pool)
+    port = self._server.add_insecure_port('[::]:0')
+    self._server.start()
+
+    channel = grpc.insecure_channel('localhost:{}'.format(port))
+    self._unary_unary = channel.unary_unary(
+        b'/'.join((b'', _SERVICE, _UNARY_UNARY,)),
+        request_serializer=_REQUEST_SERIALIZER,
+        response_deserializer=_RESPONSE_DESERIALIZER,)
+    self._unary_stream = channel.unary_stream(
+        b'/'.join((b'', _SERVICE, _UNARY_STREAM,)),)
+    self._stream_unary = channel.stream_unary(
+        b'/'.join((b'', _SERVICE, _STREAM_UNARY,)),)
+    self._stream_stream = channel.stream_stream(
+        b'/'.join((b'', _SERVICE, _STREAM_STREAM,)),
+        request_serializer=_REQUEST_SERIALIZER,
+        response_deserializer=_RESPONSE_DESERIALIZER,)
+
+
+  def testSuccessfulUnaryUnary(self):
+    self._servicer.set_details(_DETAILS)
+
+    unused_response, call = self._unary_unary.with_call(
+        object(), metadata=_CLIENT_METADATA)
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA, call.initial_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA, call.trailing_metadata()))
+    self.assertIs(grpc.StatusCode.OK, call.code())
+    self.assertEqual(_DETAILS, call.details())
+
+  def testSuccessfulUnaryStream(self):
+    self._servicer.set_details(_DETAILS)
+
+    call = self._unary_stream(_SERIALIZED_REQUEST, metadata=_CLIENT_METADATA)
+    received_initial_metadata = call.initial_metadata()
+    for _ in call:
+      pass
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA, received_initial_metadata))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA, call.trailing_metadata()))
+    self.assertIs(grpc.StatusCode.OK, call.code())
+    self.assertEqual(_DETAILS, call.details())
+
+  def testSuccessfulStreamUnary(self):
+    self._servicer.set_details(_DETAILS)
+
+    unused_response, call = self._stream_unary.with_call(
+        iter([_SERIALIZED_REQUEST] * test_constants.STREAM_LENGTH),
+        metadata=_CLIENT_METADATA)
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA, call.initial_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA, call.trailing_metadata()))
+    self.assertIs(grpc.StatusCode.OK, call.code())
+    self.assertEqual(_DETAILS, call.details())
+
+  def testSuccessfulStreamStream(self):
+    self._servicer.set_details(_DETAILS)
+
+    call = self._stream_stream(
+        iter([object()] * test_constants.STREAM_LENGTH),
+        metadata=_CLIENT_METADATA)
+    received_initial_metadata = call.initial_metadata()
+    for _ in call:
+      pass
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA, received_initial_metadata))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA, call.trailing_metadata()))
+    self.assertIs(grpc.StatusCode.OK, call.code())
+    self.assertEqual(_DETAILS, call.details())
+
+  def testCustomCodeUnaryUnary(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+
+    with self.assertRaises(grpc.RpcError) as exception_context:
+      self._unary_unary.with_call(object(), metadata=_CLIENT_METADATA)
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA,
+            exception_context.exception.initial_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA,
+            exception_context.exception.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, exception_context.exception.code())
+    self.assertEqual(_DETAILS, exception_context.exception.details())
+
+  def testCustomCodeUnaryStream(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+
+    call = self._unary_stream(_SERIALIZED_REQUEST, metadata=_CLIENT_METADATA)
+    received_initial_metadata = call.initial_metadata()
+    with self.assertRaises(grpc.RpcError):
+      for _ in call:
+        pass
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA, received_initial_metadata))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA, call.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, call.code())
+    self.assertEqual(_DETAILS, call.details())
+
+  def testCustomCodeStreamUnary(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+
+    with self.assertRaises(grpc.RpcError) as exception_context:
+      self._stream_unary.with_call(
+          iter([_SERIALIZED_REQUEST] * test_constants.STREAM_LENGTH),
+          metadata=_CLIENT_METADATA)
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+          _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+          _SERVER_INITIAL_METADATA,
+          exception_context.exception.initial_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+          _SERVER_TRAILING_METADATA,
+          exception_context.exception.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, exception_context.exception.code())
+    self.assertEqual(_DETAILS, exception_context.exception.details())
+
+  def testCustomCodeStreamStream(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+
+    call = self._stream_stream(
+        iter([object()] * test_constants.STREAM_LENGTH),
+        metadata=_CLIENT_METADATA)
+    received_initial_metadata = call.initial_metadata()
+    with self.assertRaises(grpc.RpcError) as exception_context:
+      for _ in call:
+        pass
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+          _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA, received_initial_metadata))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA,
+            exception_context.exception.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, exception_context.exception.code())
+    self.assertEqual(_DETAILS, exception_context.exception.details())
+
+  def testCustomCodeExceptionUnaryUnary(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+    self._servicer.set_exception()
+
+    with self.assertRaises(grpc.RpcError) as exception_context:
+     self._unary_unary.with_call(object(), metadata=_CLIENT_METADATA)
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA,
+            exception_context.exception.initial_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA,
+            exception_context.exception.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, exception_context.exception.code())
+    self.assertEqual(_DETAILS, exception_context.exception.details())
+
+  def testCustomCodeExceptionUnaryStream(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+    self._servicer.set_exception()
+
+    call = self._unary_stream(_SERIALIZED_REQUEST, metadata=_CLIENT_METADATA)
+    received_initial_metadata = call.initial_metadata()
+    with self.assertRaises(grpc.RpcError):
+      for _ in call:
+        pass
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA, received_initial_metadata))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA, call.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, call.code())
+    self.assertEqual(_DETAILS, call.details())
+
+  def testCustomCodeExceptionStreamUnary(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+    self._servicer.set_exception()
+
+    with self.assertRaises(grpc.RpcError) as exception_context:
+      self._stream_unary.with_call(
+          iter([_SERIALIZED_REQUEST] * test_constants.STREAM_LENGTH),
+          metadata=_CLIENT_METADATA)
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA,
+            exception_context.exception.initial_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA,
+            exception_context.exception.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, exception_context.exception.code())
+    self.assertEqual(_DETAILS, exception_context.exception.details())
+
+  def testCustomCodeExceptionStreamStream(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+    self._servicer.set_exception()
+
+    call = self._stream_stream(
+        iter([object()] * test_constants.STREAM_LENGTH),
+        metadata=_CLIENT_METADATA)
+    received_initial_metadata = call.initial_metadata()
+    with self.assertRaises(grpc.RpcError):
+      for _ in call:
+        pass
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA, received_initial_metadata))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA, call.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, call.code())
+    self.assertEqual(_DETAILS, call.details())
+
+  def testCustomCodeReturnNoneUnaryUnary(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+    self._servicer.set_return_none()
+
+    with self.assertRaises(grpc.RpcError) as exception_context:
+      self._unary_unary.with_call(object(), metadata=_CLIENT_METADATA)
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA,
+            exception_context.exception.initial_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA,
+            exception_context.exception.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, exception_context.exception.code())
+    self.assertEqual(_DETAILS, exception_context.exception.details())
+
+  def testCustomCodeReturnNoneStreamUnary(self):
+    self._servicer.set_code(_NON_OK_CODE)
+    self._servicer.set_details(_DETAILS)
+    self._servicer.set_return_none()
+
+    with self.assertRaises(grpc.RpcError) as exception_context:
+      self._stream_unary.with_call(
+          iter([_SERIALIZED_REQUEST] * test_constants.STREAM_LENGTH),
+          metadata=_CLIENT_METADATA)
+
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _CLIENT_METADATA, self._servicer.received_client_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_INITIAL_METADATA,
+            exception_context.exception.initial_metadata()))
+    self.assertTrue(
+        test_common.metadata_transmitted(
+            _SERVER_TRAILING_METADATA,
+            exception_context.exception.trailing_metadata()))
+    self.assertIs(_NON_OK_CODE, exception_context.exception.code())
+    self.assertEqual(_DETAILS, exception_context.exception.details())
+
+
+if __name__ == '__main__':
+  unittest.main(verbosity=2)
diff --git a/src/python/grpcio/tests/unit/_metadata_test.py b/src/python/grpcio/tests/unit/_metadata_test.py
index 77b3901261..2cb13f236b 100644
--- a/src/python/grpcio/tests/unit/_metadata_test.py
+++ b/src/python/grpcio/tests/unit/_metadata_test.py
@@ -173,8 +173,8 @@ class MetadataTest(unittest.TestCase):
 
   def testUnaryUnary(self):
     multi_callable = self._channel.unary_unary(_UNARY_UNARY)
-    unused_response, call = multi_callable(
-        _REQUEST, metadata=_CLIENT_METADATA, with_call=True)
+    unused_response, call = multi_callable.with_call(
+        _REQUEST, metadata=_CLIENT_METADATA)
     self.assertTrue(test_common.metadata_transmitted(
         _SERVER_INITIAL_METADATA, call.initial_metadata()))
     self.assertTrue(test_common.metadata_transmitted(
@@ -192,9 +192,9 @@ class MetadataTest(unittest.TestCase):
 
   def testStreamUnary(self):
     multi_callable = self._channel.stream_unary(_STREAM_UNARY)
-    unused_response, call = multi_callable(
+    unused_response, call = multi_callable.with_call(
         [_REQUEST] * test_constants.STREAM_LENGTH,
-        metadata=_CLIENT_METADATA, with_call=True)
+        metadata=_CLIENT_METADATA)
     self.assertTrue(test_common.metadata_transmitted(
         _SERVER_INITIAL_METADATA, call.initial_metadata()))
     self.assertTrue(test_common.metadata_transmitted(
diff --git a/src/python/grpcio/tests/unit/_rpc_test.py b/src/python/grpcio/tests/unit/_rpc_test.py
index 8407593c86..9814504edf 100644
--- a/src/python/grpcio/tests/unit/_rpc_test.py
+++ b/src/python/grpcio/tests/unit/_rpc_test.py
@@ -27,7 +27,7 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-"""Test of gRPC Python's application-layer API."""
+"""Test of RPCs made against gRPC Python's application-layer API."""
 
 import itertools
 import threading
@@ -216,10 +216,9 @@ class RPCTest(unittest.TestCase):
     expected_response = self._handler.handle_unary_unary(request, None)
 
     multi_callable = _unary_unary_multi_callable(self._channel)
-    response, call = multi_callable(
+    response, call = multi_callable.with_call(
         request, metadata=(
-            (b'test', b'SuccessfulUnaryRequestBlockingUnaryResponseWithCall'),),
-        with_call=True)
+            (b'test', b'SuccessfulUnaryRequestBlockingUnaryResponseWithCall'),))
 
     self.assertEqual(expected_response, response)
     self.assertIs(grpc.StatusCode.OK, call.code())
@@ -266,11 +265,11 @@ class RPCTest(unittest.TestCase):
     request_iterator = iter(requests)
 
     multi_callable = _stream_unary_multi_callable(self._channel)
-    response, call = multi_callable(
+    response, call = multi_callable.with_call(
         request_iterator,
         metadata=(
             (b'test', b'SuccessfulStreamRequestBlockingUnaryResponseWithCall'),
-        ), with_call=True)
+        ))
 
     self.assertEqual(expected_response, response)
     self.assertIs(grpc.StatusCode.OK, call.code())
@@ -525,10 +524,9 @@ class RPCTest(unittest.TestCase):
     multi_callable = _unary_unary_multi_callable(self._channel)
     with self._control.pause():
       with self.assertRaises(grpc.RpcError) as exception_context:
-        multi_callable(
+        multi_callable.with_call(
             request, timeout=test_constants.SHORT_TIMEOUT,
-            metadata=((b'test', b'ExpiredUnaryRequestBlockingUnaryResponse'),),
-            with_call=True)
+            metadata=((b'test', b'ExpiredUnaryRequestBlockingUnaryResponse'),))
 
     self.assertIsNotNone(exception_context.exception.initial_metadata())
     self.assertIs(
@@ -640,10 +638,9 @@ class RPCTest(unittest.TestCase):
     multi_callable = _unary_unary_multi_callable(self._channel)
     with self._control.fail():
       with self.assertRaises(grpc.RpcError) as exception_context:
-        multi_callable(
+        multi_callable.with_call(
             request,
-            metadata=((b'test', b'FailedUnaryRequestBlockingUnaryResponse'),),
-            with_call=True)
+            metadata=((b'test', b'FailedUnaryRequestBlockingUnaryResponse'),))
 
     self.assertIs(grpc.StatusCode.UNKNOWN, exception_context.exception.code())
 
diff --git a/templates/src/csharp/Grpc.Auth/project.json.template b/templates/src/csharp/Grpc.Auth/project.json.template
new file mode 100644
index 0000000000..90ad0eb089
--- /dev/null
+++ b/templates/src/csharp/Grpc.Auth/project.json.template
@@ -0,0 +1,34 @@
+%YAML 1.2
+--- |
+  {
+    "version": "${settings.csharp_version}",
+    "title": "gRPC C# Auth",
+    "authors": [ "Google Inc." ],
+    "copyright": "Copyright 2015, Google Inc.",
+    "packOptions": {
+      "summary": "Auth library for C# implementation of gRPC - an RPC library and framework",
+      "description": "Auth library for C# implementation of gRPC - an RPC library and framework. See project site for more info.",
+      "owners": [ "grpc-packages" ],
+      "licenseUrl": "https://github.com/grpc/grpc/blob/master/LICENSE",
+      "projectUrl": "https://github.com/grpc/grpc",
+      "requireLicenseAcceptance": false,
+      "tags": [ "gRPC RPC Protocol HTTP/2 Auth OAuth2" ],
+    },
+    "dependencies": {
+      "Grpc.Core": "${settings.csharp_version}",
+      "Google.Apis.Auth": "1.11.1"
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "net45"
+        ],
+        "dependencies": {
+          "Microsoft.NETCore.Portable.Compatibility": "1.0.1-rc2-24027",
+          "NETStandard.Library": "1.5.0-rc2-24027",
+          "System.Threading.Tasks": "4.0.11-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.Core.Tests/project.json.template b/templates/src/csharp/Grpc.Core.Tests/project.json.template
new file mode 100644
index 0000000000..bc9fa3e63a
--- /dev/null
+++ b/templates/src/csharp/Grpc.Core.Tests/project.json.template
@@ -0,0 +1,24 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True"/>
+    "dependencies": {
+      "Grpc.Core": {
+        "target": "project"
+      },
+      "Newtonsoft.Json": "8.0.3",
+      "NUnit": "3.2.0",
+      "NUnitLite": "3.2.0-*"
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    },
+  }
diff --git a/templates/src/csharp/Grpc.Core/project.json.template b/templates/src/csharp/Grpc.Core/project.json.template
new file mode 100644
index 0000000000..6f9197f572
--- /dev/null
+++ b/templates/src/csharp/Grpc.Core/project.json.template
@@ -0,0 +1,44 @@
+%YAML 1.2
+--- |
+  {
+    "version": "${settings.csharp_version}",
+    "title": "gRPC C# Core",
+    "authors": [ "Google Inc." ],
+    "copyright": "Copyright 2015, Google Inc.",
+    "packOptions": {
+      "summary": "Core C# implementation of gRPC - an RPC library and framework",
+      "description": "Core C# implementation of gRPC - an RPC library and framework. See project site for more info.",
+      "owners": [ "grpc-packages" ],
+      "licenseUrl": "https://github.com/grpc/grpc/blob/master/LICENSE",
+      "projectUrl": "https://github.com/grpc/grpc",
+      "requireLicenseAcceptance": false,
+      "tags": [ "gRPC RPC Protocol HTTP/2" ],
+      "files": {
+        "build/net45/": "Grpc.Core.targets",
+        "build/native/bin/windows_x86/": "../nativelibs/windows_x86/grpc_csharp_ext.dll",
+        "build/native/bin/windows_x64/": "../nativelibs/windows_x64/grpc_csharp_ext.dll",
+        "build/native/bin/linux_x86/": "../nativelibs/linux_x86/libgrpc_csharp_ext.so",
+        "build/native/bin/linux_x64/": "../nativelibs/linux_x64/libgrpc_csharp_ext.so",
+        "build/native/bin/macosx_x86/": "../nativelibs/macosx_x86/libgrpc_csharp_ext.dylib",
+        "build/native/bin/macosx_x64/": "../nativelibs/macosx_x64/libgrpc_csharp_ext.dylib"
+      }
+    },
+    "buildOptions": {
+      "embed": [ "../../../etc/roots.pem" ]
+    },
+    "dependencies": {
+      "Ix-Async": "1.2.5"
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027",
+          "System.Threading.Thread": "4.0.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.Examples.MathClient/project.json.template b/templates/src/csharp/Grpc.Examples.MathClient/project.json.template
new file mode 100644
index 0000000000..fba401c3a4
--- /dev/null
+++ b/templates/src/csharp/Grpc.Examples.MathClient/project.json.template
@@ -0,0 +1,21 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True"/>
+    "dependencies": {
+      "Grpc.Examples": {
+        "target": "project"
+      }
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.Examples.MathServer/project.json.template b/templates/src/csharp/Grpc.Examples.MathServer/project.json.template
new file mode 100644
index 0000000000..fba401c3a4
--- /dev/null
+++ b/templates/src/csharp/Grpc.Examples.MathServer/project.json.template
@@ -0,0 +1,21 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True"/>
+    "dependencies": {
+      "Grpc.Examples": {
+        "target": "project"
+      }
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.Examples.Tests/project.json.template b/templates/src/csharp/Grpc.Examples.Tests/project.json.template
new file mode 100644
index 0000000000..21765f0565
--- /dev/null
+++ b/templates/src/csharp/Grpc.Examples.Tests/project.json.template
@@ -0,0 +1,23 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True"/>
+    "dependencies": {
+      "Grpc.Examples": {
+        "target": "project"
+      },
+      "NUnit": "3.2.0",
+      "NUnitLite": "3.2.0-*"
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.Examples/project.json.template b/templates/src/csharp/Grpc.Examples/project.json.template
new file mode 100644
index 0000000000..715fc08725
--- /dev/null
+++ b/templates/src/csharp/Grpc.Examples/project.json.template
@@ -0,0 +1,27 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=False"/>
+    "dependencies": {
+      "Grpc.Core": {
+        "target": "project"
+      },
+      "Google.Protobuf": "3.0.0-beta3"
+    },
+    "frameworks": {
+      "net45": {
+        "frameworkAssemblies": {
+          "System.Runtime": "",
+          "System.IO": ""
+        }
+      },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.HealthCheck.Tests/project.json.template b/templates/src/csharp/Grpc.HealthCheck.Tests/project.json.template
new file mode 100644
index 0000000000..79e67226cb
--- /dev/null
+++ b/templates/src/csharp/Grpc.HealthCheck.Tests/project.json.template
@@ -0,0 +1,23 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True"/>
+    "dependencies": {
+      "Grpc.HealthCheck": {
+        "target": "project"
+      },
+      "NUnit": "3.2.0",
+      "NUnitLite": "3.2.0-*"
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.HealthCheck/project.json.template b/templates/src/csharp/Grpc.HealthCheck/project.json.template
new file mode 100644
index 0000000000..59073af7ee
--- /dev/null
+++ b/templates/src/csharp/Grpc.HealthCheck/project.json.template
@@ -0,0 +1,37 @@
+%YAML 1.2
+--- |
+  {
+    "version": "${settings.csharp_version}",
+    "title": "gRPC C# Healthchecking",
+    "authors": [ "Google Inc." ],
+    "copyright": "Copyright 2015, Google Inc.",
+    "packOptions": {
+      "summary": "Implementation of gRPC health service",
+      "description": "Example implementation of grpc.health.v1 service that can be used for health-checking.",
+      "owners": [ "grpc-packages" ],
+      "licenseUrl": "https://github.com/grpc/grpc/blob/master/LICENSE",
+      "projectUrl": "https://github.com/grpc/grpc",
+      "requireLicenseAcceptance": false,
+      "tags": [ "gRPC health check" ]
+    },
+    "dependencies": {
+      "Grpc.Core": "${settings.csharp_version}",
+      "Google.Protobuf": "3.0.0-beta3"
+    },
+    "frameworks": {
+      "net45": {
+        "frameworkAssemblies": {
+          "System.Runtime": "",
+          "System.IO": ""
+        }
+      },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.IntegrationTesting.Client/project.json.template b/templates/src/csharp/Grpc.IntegrationTesting.Client/project.json.template
new file mode 100644
index 0000000000..10ed549347
--- /dev/null
+++ b/templates/src/csharp/Grpc.IntegrationTesting.Client/project.json.template
@@ -0,0 +1,22 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True,includeData=True"/>
+    "dependencies": {
+      "Grpc.IntegrationTesting": {
+        "target": "project"
+      }
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45",
+          "net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json.template b/templates/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json.template
new file mode 100644
index 0000000000..10ed549347
--- /dev/null
+++ b/templates/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json.template
@@ -0,0 +1,22 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True,includeData=True"/>
+    "dependencies": {
+      "Grpc.IntegrationTesting": {
+        "target": "project"
+      }
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45",
+          "net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.IntegrationTesting.Server/project.json.template b/templates/src/csharp/Grpc.IntegrationTesting.Server/project.json.template
new file mode 100644
index 0000000000..10ed549347
--- /dev/null
+++ b/templates/src/csharp/Grpc.IntegrationTesting.Server/project.json.template
@@ -0,0 +1,22 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True,includeData=True"/>
+    "dependencies": {
+      "Grpc.IntegrationTesting": {
+        "target": "project"
+      }
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45",
+          "net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.IntegrationTesting.StressClient/project.json.template b/templates/src/csharp/Grpc.IntegrationTesting.StressClient/project.json.template
new file mode 100644
index 0000000000..10ed549347
--- /dev/null
+++ b/templates/src/csharp/Grpc.IntegrationTesting.StressClient/project.json.template
@@ -0,0 +1,22 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True,includeData=True"/>
+    "dependencies": {
+      "Grpc.IntegrationTesting": {
+        "target": "project"
+      }
+    },
+    "frameworks": {
+      "net45": { },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45",
+          "net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/Grpc.IntegrationTesting/project.json.template b/templates/src/csharp/Grpc.IntegrationTesting/project.json.template
new file mode 100644
index 0000000000..3181511485
--- /dev/null
+++ b/templates/src/csharp/Grpc.IntegrationTesting/project.json.template
@@ -0,0 +1,38 @@
+%YAML 1.2
+--- |
+  {
+    <%include file="../build_options.include" args="executable=True,includeData=True"/>
+    "dependencies": {
+      "Grpc.Auth": {
+        "target": "project"
+      },
+      "Grpc.Core": {
+        "target": "project"
+      },
+      "Google.Protobuf": "3.0.0-beta3",
+      "CommandLineParser": "1.9.71",
+      "NUnit": "3.2.0",
+      "NUnitLite": "3.2.0-*"
+    },
+    "frameworks": {
+      "net45": {
+        "dependencies": {
+          "Moq": "4.2.1510.2205"
+        },
+        "frameworkAssemblies": {
+          "System.Runtime": "",
+          "System.IO": ""
+        }
+      },
+      "netstandard1.5": {
+        "imports": [
+          "portable-net45",
+          "net45"
+        ],
+        "dependencies": {
+          "NETStandard.Library": "1.5.0-rc2-24027",
+          "System.Linq.Expressions": "4.0.11-rc2-24027"
+        }
+      }
+    }
+  }
diff --git a/templates/src/csharp/build_options.include b/templates/src/csharp/build_options.include
new file mode 100644
index 0000000000..468d281618
--- /dev/null
+++ b/templates/src/csharp/build_options.include
@@ -0,0 +1,45 @@
+<%page args="executable=False,includeData=False"/>\
+"buildOptions": {
+  % if executable:
+    "emitEntryPoint": true
+  % endif
+  },
+  % if executable:
+  "configurations": {
+    "Debug": {
+      "buildOptions": {
+        "copyToOutput": {
+          % if includeData:
+          "include": "data/*",
+          % endif
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Debug/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Debug/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/dbg/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/dbg/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    },
+    "Release": {
+      "buildOptions": {
+        "copyToOutput": {
+          % if includeData:
+          "include": "data/*",
+          % endif
+          "mappings": {
+            "nativelibs/windows_x64/grpc_csharp_ext.dll": "../../../vsprojects/x64/Release/grpc_csharp_ext.dll",
+            "nativelibs/windows_x86/grpc_csharp_ext.dll": "../../../vsprojects/Release/grpc_csharp_ext.dll",
+            "nativelibs/linux_x64/libgrpc_csharp_ext.so": "../../../libs/opt/libgrpc_csharp_ext.so",
+            "nativelibs/macosx_x64/libgrpc_csharp_ext.dylib": "../../../libs/opt/libgrpc_csharp_ext.dylib"
+          }
+        }
+      }
+    }
+  },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
+  % endif
\ No newline at end of file
diff --git a/templates/src/csharp/build_packages.bat.template b/templates/src/csharp/build_packages.bat.template
index 122435af2e..ea2acb661e 100644
--- a/templates/src/csharp/build_packages.bat.template
+++ b/templates/src/csharp/build_packages.bat.template
@@ -43,12 +43,12 @@
   
   @rem Collect the artifacts built by the previous build step if running on Jenkins
   @rem TODO(jtattermusch): is there a better way to do this?
-  xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=windows\artifacts\* Grpc.Core\windows_x86${"\\"}
-  xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=windows\artifacts\* Grpc.Core\windows_x64${"\\"}
-  xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=linux\artifacts\* Grpc.Core\linux_x86${"\\"}
-  xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=linux\artifacts\* Grpc.Core\linux_x64${"\\"}
-  xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=macos\artifacts\* Grpc.Core\macosx_x86${"\\"}
-  xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=macos\artifacts\* Grpc.Core\macosx_x64${"\\"}
+  xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=windows\artifacts\* nativelibs\windows_x86${"\\"}
+  xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=windows\artifacts\* nativelibs\windows_x64${"\\"}
+  xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=linux\artifacts\* nativelibs\linux_x86${"\\"}
+  xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=linux\artifacts\* nativelibs\linux_x64${"\\"}
+  xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=macos\artifacts\* nativelibs\macosx_x86${"\\"}
+  xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=macos\artifacts\* nativelibs\macosx_x64${"\\"}
   
   @rem Collect protoc artifacts built by the previous build step
   xcopy /Y /I ..\..\architecture=x86,language=protoc,platform=windows\artifacts\* protoc_plugins\windows_x86${"\\"}
diff --git a/templates/src/node/tools/package.json.template b/templates/src/node/tools/package.json.template
index 69ad71a3b8..0282425976 100644
--- a/templates/src/node/tools/package.json.template
+++ b/templates/src/node/tools/package.json.template
@@ -36,6 +36,7 @@
       "index.js",
       "bin/protoc.js",
       "bin/protoc_plugin.js",
+      "bin/google/protobuf",
       "LICENSE"
     ],
     "main": "index.js"
diff --git a/templates/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile.template b/templates/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile.template
new file mode 100644
index 0000000000..35782d6665
--- /dev/null
+++ b/templates/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile.template
@@ -0,0 +1,38 @@
+%YAML 1.2
+--- |
+  # Copyright 2015, Google Inc.
+  # All rights reserved.
+  #
+  # Redistribution and use in source and binary forms, with or without
+  # modification, are permitted provided that the following conditions are
+  # met:
+  #
+  #     * Redistributions of source code must retain the above copyright
+  # notice, this list of conditions and the following disclaimer.
+  #     * Redistributions in binary form must reproduce the above
+  # copyright notice, this list of conditions and the following disclaimer
+  # in the documentation and/or other materials provided with the
+  # distribution.
+  #     * Neither the name of Google Inc. nor the names of its
+  # contributors may be used to endorse or promote products derived from
+  # this software without specific prior written permission.
+  #
+  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  
+  FROM microsoft/dotnet:1.0.0-preview1
+  
+  <%include file="../../apt_get_basic.include"/>
+  <%include file="../../run_tests_addons.include"/>
+  # Define the default command.
+  CMD ["bash"]
+  
diff --git a/test/core/end2end/end2end_nosec_tests.c b/test/core/end2end/end2end_nosec_tests.c
index b71299c09e..2893bddc43 100644
--- a/test/core/end2end/end2end_nosec_tests.c
+++ b/test/core/end2end/end2end_nosec_tests.c
@@ -115,6 +115,8 @@ extern void simple_metadata(grpc_end2end_test_config config);
 extern void simple_metadata_pre_init(void);
 extern void simple_request(grpc_end2end_test_config config);
 extern void simple_request_pre_init(void);
+extern void streaming_error_response(grpc_end2end_test_config config);
+extern void streaming_error_response_pre_init(void);
 extern void trailing_metadata(grpc_end2end_test_config config);
 extern void trailing_metadata_pre_init(void);
 
@@ -157,6 +159,7 @@ void grpc_end2end_tests_pre_init(void) {
   simple_delayed_request_pre_init();
   simple_metadata_pre_init();
   simple_request_pre_init();
+  streaming_error_response_pre_init();
   trailing_metadata_pre_init();
 }
 
@@ -203,6 +206,7 @@ void grpc_end2end_tests(int argc, char **argv,
     simple_delayed_request(config);
     simple_metadata(config);
     simple_request(config);
+    streaming_error_response(config);
     trailing_metadata(config);
     return;
   }
@@ -352,6 +356,10 @@ void grpc_end2end_tests(int argc, char **argv,
       simple_request(config);
       continue;
     }
+    if (0 == strcmp("streaming_error_response", argv[i])) {
+      streaming_error_response(config);
+      continue;
+    }
     if (0 == strcmp("trailing_metadata", argv[i])) {
       trailing_metadata(config);
       continue;
diff --git a/test/core/end2end/end2end_tests.c b/test/core/end2end/end2end_tests.c
index 00c9c44a78..96a38e76dc 100644
--- a/test/core/end2end/end2end_tests.c
+++ b/test/core/end2end/end2end_tests.c
@@ -117,6 +117,8 @@ extern void simple_metadata(grpc_end2end_test_config config);
 extern void simple_metadata_pre_init(void);
 extern void simple_request(grpc_end2end_test_config config);
 extern void simple_request_pre_init(void);
+extern void streaming_error_response(grpc_end2end_test_config config);
+extern void streaming_error_response_pre_init(void);
 extern void trailing_metadata(grpc_end2end_test_config config);
 extern void trailing_metadata_pre_init(void);
 
@@ -160,6 +162,7 @@ void grpc_end2end_tests_pre_init(void) {
   simple_delayed_request_pre_init();
   simple_metadata_pre_init();
   simple_request_pre_init();
+  streaming_error_response_pre_init();
   trailing_metadata_pre_init();
 }
 
@@ -207,6 +210,7 @@ void grpc_end2end_tests(int argc, char **argv,
     simple_delayed_request(config);
     simple_metadata(config);
     simple_request(config);
+    streaming_error_response(config);
     trailing_metadata(config);
     return;
   }
@@ -360,6 +364,10 @@ void grpc_end2end_tests(int argc, char **argv,
       simple_request(config);
       continue;
     }
+    if (0 == strcmp("streaming_error_response", argv[i])) {
+      streaming_error_response(config);
+      continue;
+    }
     if (0 == strcmp("trailing_metadata", argv[i])) {
       trailing_metadata(config);
       continue;
diff --git a/test/core/end2end/fuzzers/client_fuzzer_corpus/2c452818a10ddef09b90c89a53db14b9b56b21f3 b/test/core/end2end/fuzzers/client_fuzzer_corpus/2c452818a10ddef09b90c89a53db14b9b56b21f3
new file mode 100644
index 0000000000..059634fda1
--- /dev/null
+++ b/test/core/end2end/fuzzers/client_fuzzer_corpus/2c452818a10ddef09b90c89a53db14b9b56b21f3
diff --git a/test/core/end2end/fuzzers/client_fuzzer_corpus/42ead79c94eccdf8a8c3d8036be73e14fa260dd5 b/test/core/end2end/fuzzers/client_fuzzer_corpus/42ead79c94eccdf8a8c3d8036be73e14fa260dd5
new file mode 100644
index 0000000000..b9c53b26ed
--- /dev/null
+++ b/test/core/end2end/fuzzers/client_fuzzer_corpus/42ead79c94eccdf8a8c3d8036be73e14fa260dd5
diff --git a/test/core/end2end/fuzzers/client_fuzzer_corpus/4e05d6cf1c3f0c04f6ee92d09a53ee0fe35c085a b/test/core/end2end/fuzzers/client_fuzzer_corpus/4e05d6cf1c3f0c04f6ee92d09a53ee0fe35c085a
new file mode 100644
index 0000000000..8a4a279998
--- /dev/null
+++ b/test/core/end2end/fuzzers/client_fuzzer_corpus/4e05d6cf1c3f0c04f6ee92d09a53ee0fe35c085a
diff --git a/test/core/end2end/fuzzers/client_fuzzer_corpus/8f980dd25f1c77e3536131c2c620aa32e8c13180 b/test/core/end2end/fuzzers/client_fuzzer_corpus/8f980dd25f1c77e3536131c2c620aa32e8c13180
new file mode 100644
index 0000000000..fcebab7a64
--- /dev/null
+++ b/test/core/end2end/fuzzers/client_fuzzer_corpus/8f980dd25f1c77e3536131c2c620aa32e8c13180
diff --git a/test/core/end2end/fuzzers/client_fuzzer_corpus/aef36c49d7dec0dcf8cdc224d9e9221fa2cb1db0 b/test/core/end2end/fuzzers/client_fuzzer_corpus/aef36c49d7dec0dcf8cdc224d9e9221fa2cb1db0
new file mode 100644
index 0000000000..6b015fe66e
--- /dev/null
+++ b/test/core/end2end/fuzzers/client_fuzzer_corpus/aef36c49d7dec0dcf8cdc224d9e9221fa2cb1db0
diff --git a/test/core/end2end/fuzzers/client_fuzzer_corpus/crash-14ed70cd9ea7987cdd0c8f6e39398ee7c60ee2ff b/test/core/end2end/fuzzers/client_fuzzer_corpus/crash-14ed70cd9ea7987cdd0c8f6e39398ee7c60ee2ff
new file mode 100644
index 0000000000..be6366049d
--- /dev/null
+++ b/test/core/end2end/fuzzers/client_fuzzer_corpus/crash-14ed70cd9ea7987cdd0c8f6e39398ee7c60ee2ff
diff --git a/test/core/end2end/fuzzers/client_fuzzer_corpus/dcb06a6e34cbed15515e5b3581ca666f704777bd b/test/core/end2end/fuzzers/client_fuzzer_corpus/dcb06a6e34cbed15515e5b3581ca666f704777bd
new file mode 100644
index 0000000000..92750f94a3
--- /dev/null
+++ b/test/core/end2end/fuzzers/client_fuzzer_corpus/dcb06a6e34cbed15515e5b3581ca666f704777bd
diff --git a/test/core/end2end/fuzzers/client_fuzzer_corpus/ea46b684f1e67a27c231f2d536c41da631189b9c b/test/core/end2end/fuzzers/client_fuzzer_corpus/ea46b684f1e67a27c231f2d536c41da631189b9c
new file mode 100644
index 0000000000..c891d9adc8
--- /dev/null
+++ b/test/core/end2end/fuzzers/client_fuzzer_corpus/ea46b684f1e67a27c231f2d536c41da631189b9c
diff --git a/test/core/end2end/gen_build_yaml.py b/test/core/end2end/gen_build_yaml.py
index 325d9b3cad..6d3d8f8d3c 100755
--- a/test/core/end2end/gen_build_yaml.py
+++ b/test/core/end2end/gen_build_yaml.py
@@ -126,6 +126,7 @@ END2END_TESTS = {
     'simple_delayed_request': connectivity_test_options,
     'simple_metadata': default_test_options,
     'simple_request': default_test_options,
+    'streaming_error_response': default_test_options,
     'trailing_metadata': default_test_options,
 }
 
diff --git a/test/core/end2end/tests/streaming_error_response.c b/test/core/end2end/tests/streaming_error_response.c
new file mode 100644
index 0000000000..e15c132d63
--- /dev/null
+++ b/test/core/end2end/tests/streaming_error_response.c
@@ -0,0 +1,278 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "test/core/end2end/end2end_tests.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include <grpc/byte_buffer.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/time.h>
+#include <grpc/support/useful.h>
+#include "test/core/end2end/cq_verifier.h"
+
+enum { TIMEOUT = 200000 };
+
+static void *tag(intptr_t t) { return (void *)t; }
+
+static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config,
+                                            const char *test_name,
+                                            grpc_channel_args *client_args,
+                                            grpc_channel_args *server_args,
+                                            bool request_status_early) {
+  grpc_end2end_test_fixture f;
+  gpr_log(GPR_INFO, "%s/%s/request_status_early=%s", test_name, config.name,
+          request_status_early ? "true" : "false");
+  f = config.create_fixture(client_args, server_args);
+  config.init_server(&f, server_args);
+  config.init_client(&f, client_args);
+  return f;
+}
+
+static gpr_timespec n_seconds_time(int n) {
+  return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(n);
+}
+
+static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+
+static void drain_cq(grpc_completion_queue *cq) {
+  grpc_event ev;
+  do {
+    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+  } while (ev.type != GRPC_QUEUE_SHUTDOWN);
+}
+
+static void shutdown_server(grpc_end2end_test_fixture *f) {
+  if (!f->server) return;
+  grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
+  grpc_server_destroy(f->server);
+  f->server = NULL;
+}
+
+static void shutdown_client(grpc_end2end_test_fixture *f) {
+  if (!f->client) return;
+  grpc_channel_destroy(f->client);
+  f->client = NULL;
+}
+
+static void end_test(grpc_end2end_test_fixture *f) {
+  shutdown_server(f);
+  shutdown_client(f);
+
+  grpc_completion_queue_shutdown(f->cq);
+  drain_cq(f->cq);
+  grpc_completion_queue_destroy(f->cq);
+}
+
+/* Client sends a request with payload, server reads then returns status. */
+static void test(grpc_end2end_test_config config, bool request_status_early) {
+  grpc_call *c;
+  grpc_call *s;
+  gpr_slice response_payload1_slice = gpr_slice_from_copied_string("hello");
+  grpc_byte_buffer *response_payload1 =
+      grpc_raw_byte_buffer_create(&response_payload1_slice, 1);
+  gpr_slice response_payload2_slice = gpr_slice_from_copied_string("world");
+  grpc_byte_buffer *response_payload2 =
+      grpc_raw_byte_buffer_create(&response_payload2_slice, 1);
+  gpr_timespec deadline = five_seconds_time();
+  grpc_end2end_test_fixture f = begin_test(config, "streaming_error_response",
+                                           NULL, NULL, request_status_early);
+  cq_verifier *cqv = cq_verifier_create(f.cq);
+  grpc_op ops[6];
+  grpc_op *op;
+  grpc_metadata_array initial_metadata_recv;
+  grpc_metadata_array trailing_metadata_recv;
+  grpc_metadata_array request_metadata_recv;
+  grpc_byte_buffer *response_payload1_recv = NULL;
+  grpc_byte_buffer *response_payload2_recv = NULL;
+  grpc_call_details call_details;
+  grpc_status_code status;
+  grpc_call_error error;
+  char *details = NULL;
+  size_t details_capacity = 0;
+  int was_cancelled = 2;
+
+  c = grpc_channel_create_call(f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
+                               "/foo", "foo.test.google.fr", deadline, NULL);
+  GPR_ASSERT(c);
+
+  grpc_metadata_array_init(&initial_metadata_recv);
+  grpc_metadata_array_init(&trailing_metadata_recv);
+  grpc_metadata_array_init(&request_metadata_recv);
+  grpc_call_details_init(&call_details);
+
+  memset(ops, 0, sizeof(ops));
+  op = ops;
+  op->op = GRPC_OP_SEND_INITIAL_METADATA;
+  op->data.send_initial_metadata.count = 0;
+  op++;
+  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
+  op++;
+  op->op = GRPC_OP_RECV_INITIAL_METADATA;
+  op->data.recv_initial_metadata = &initial_metadata_recv;
+  op++;
+  op->op = GRPC_OP_RECV_MESSAGE;
+  op->data.recv_message = &response_payload1_recv;
+  op++;
+  if (request_status_early) {
+    op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
+    op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
+    op->data.recv_status_on_client.status = &status;
+    op->data.recv_status_on_client.status_details = &details;
+    op->data.recv_status_on_client.status_details_capacity = &details_capacity;
+    op++;
+  }
+  error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL);
+  GPR_ASSERT(GRPC_CALL_OK == error);
+
+  GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(
+                                 f.server, &s, &call_details,
+                                 &request_metadata_recv, f.cq, f.cq, tag(101)));
+  cq_expect_completion(cqv, tag(101), 1);
+  cq_verify(cqv);
+
+  memset(ops, 0, sizeof(ops));
+  op = ops;
+  op->op = GRPC_OP_SEND_INITIAL_METADATA;
+  op->data.send_initial_metadata.count = 0;
+  op++;
+  op->op = GRPC_OP_SEND_MESSAGE;
+  op->data.send_message = response_payload1;
+  op++;
+  error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(102), NULL);
+  GPR_ASSERT(GRPC_CALL_OK == error);
+
+  cq_expect_completion(cqv, tag(102), 1);
+  cq_verify(cqv);
+
+  memset(ops, 0, sizeof(ops));
+  op = ops;
+  op->op = GRPC_OP_SEND_MESSAGE;
+  op->data.send_message = response_payload2;
+  op++;
+  error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(103), NULL);
+  GPR_ASSERT(GRPC_CALL_OK == error);
+
+  cq_expect_completion(cqv, tag(103), 1);
+  if (!request_status_early) {
+    cq_expect_completion(cqv, tag(1), 1);
+  }
+  cq_verify(cqv);
+
+  memset(ops, 0, sizeof(ops));
+  op = ops;
+  op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
+  op->data.recv_close_on_server.cancelled = &was_cancelled;
+  op++;
+  op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
+  op->data.send_status_from_server.trailing_metadata_count = 0;
+  op->data.send_status_from_server.status = GRPC_STATUS_FAILED_PRECONDITION;
+  op->data.send_status_from_server.status_details = "xyz";
+  op++;
+  error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(104), NULL);
+  GPR_ASSERT(GRPC_CALL_OK == error);
+
+  if (!request_status_early) {
+    memset(ops, 0, sizeof(ops));
+    op = ops;
+    op->op = GRPC_OP_RECV_MESSAGE;
+    op->data.recv_message = &response_payload2_recv;
+    op++;
+    error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(2), NULL);
+    GPR_ASSERT(GRPC_CALL_OK == error);
+  }
+
+  cq_expect_completion(cqv, tag(104), 1);
+  if (request_status_early) {
+    cq_expect_completion(cqv, tag(1), 1);
+  } else {
+    cq_expect_completion(cqv, tag(2), 1);
+  }
+  cq_verify(cqv);
+
+  if (!request_status_early) {
+    memset(ops, 0, sizeof(ops));
+    op = ops;
+    op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
+    op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
+    op->data.recv_status_on_client.status = &status;
+    op->data.recv_status_on_client.status_details = &details;
+    op->data.recv_status_on_client.status_details_capacity = &details_capacity;
+    op++;
+    error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(3), NULL);
+    GPR_ASSERT(GRPC_CALL_OK == error);
+
+    cq_expect_completion(cqv, tag(3), 1);
+    cq_verify(cqv);
+
+    GPR_ASSERT(response_payload1_recv != NULL);
+    GPR_ASSERT(response_payload2_recv != NULL);
+  }
+
+  GPR_ASSERT(status == GRPC_STATUS_FAILED_PRECONDITION);
+  GPR_ASSERT(0 == strcmp(details, "xyz"));
+  GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
+  GPR_ASSERT(was_cancelled == 1);
+
+  gpr_free(details);
+  grpc_metadata_array_destroy(&initial_metadata_recv);
+  grpc_metadata_array_destroy(&trailing_metadata_recv);
+  grpc_metadata_array_destroy(&request_metadata_recv);
+  grpc_call_details_destroy(&call_details);
+
+  grpc_call_destroy(c);
+  grpc_call_destroy(s);
+
+  cq_verifier_destroy(cqv);
+
+  grpc_byte_buffer_destroy(response_payload1);
+  grpc_byte_buffer_destroy(response_payload2);
+  grpc_byte_buffer_destroy(response_payload1_recv);
+  grpc_byte_buffer_destroy(response_payload2_recv);
+
+  end_test(&f);
+  config.tear_down_data(&f);
+}
+
+void streaming_error_response(grpc_end2end_test_config config) {
+  test(config, false);
+  test(config, true);
+}
+
+void streaming_error_response_pre_init(void) {}
diff --git a/test/cpp/interop/client.cc b/test/cpp/interop/client.cc
index addaf174f2..e8ae6ee572 100644
--- a/test/cpp/interop/client.cc
+++ b/test/cpp/interop/client.cc
@@ -40,7 +40,9 @@
 #include <grpc++/client_context.h>
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
+#include <grpc/support/useful.h>
 
+#include "src/core/lib/support/string.h"
 #include "test/cpp/interop/client_helper.h"
 #include "test/cpp/interop/interop_client.h"
 #include "test/cpp/util/test_config.h"
@@ -52,30 +54,31 @@ DEFINE_string(server_host, "127.0.0.1", "Server host to connect to");
 DEFINE_string(server_host_override, "foo.test.google.fr",
               "Override the server host which is sent in HTTP header");
 DEFINE_string(test_case, "large_unary",
-              "Configure different test cases. Valid options are: "
-              "empty_unary : empty (zero bytes) request and response; "
-              "large_unary : single request and (large) response; "
-              "large_compressed_unary : single request and compressed (large) "
-              "response; "
-              "client_streaming : request streaming with single response; "
-              "server_streaming : single request with response streaming; "
+              "Configure different test cases. Valid options are:\n\n"
+              "all : all test cases;\n"
+              "cancel_after_begin : cancel stream after starting it;\n"
+              "cancel_after_first_response: cancel on first response;\n"
+              "client_compressed_streaming : compressed request streaming with "
+              "client_compressed_unary : single compressed request;\n"
+              "client_streaming : request streaming with single response;\n"
+              "compute_engine_creds: large_unary with compute engine auth;\n"
+              "custom_metadata: server will echo custom metadata;\n"
+              "empty_stream : bi-di stream with no request/response;\n"
+              "empty_unary : empty (zero bytes) request and response;\n"
+              "half_duplex : half-duplex streaming;\n"
+              "jwt_token_creds: large_unary with JWT token auth;\n"
+              "large_unary : single request and (large) response;\n"
+              "oauth2_auth_token: raw oauth2 access token auth;\n"
+              "per_rpc_creds: raw oauth2 access token on a single rpc;\n"
+              "ping_pong : full-duplex streaming;\n"
+              "response streaming;\n"
               "server_compressed_streaming : single request with compressed "
-              "response streaming; "
-              "slow_consumer : single request with response; "
-              " streaming with slow client consumer; "
-              "half_duplex : half-duplex streaming; "
-              "ping_pong : full-duplex streaming; "
-              "cancel_after_begin : cancel stream after starting it; "
-              "cancel_after_first_response: cancel on first response; "
-              "timeout_on_sleeping_server: deadline exceeds on stream; "
-              "empty_stream : bi-di stream with no request/response; "
-              "compute_engine_creds: large_unary with compute engine auth; "
-              "jwt_token_creds: large_unary with JWT token auth; "
-              "oauth2_auth_token: raw oauth2 access token auth; "
-              "per_rpc_creds: raw oauth2 access token on a single rpc; "
-              "status_code_and_message: verify status code & message; "
-              "custom_metadata: server will echo custom metadata;"
-              "all : all of above.");
+              "server_compressed_unary : single compressed response;\n"
+              "server_streaming : single request with response streaming;\n"
+              "slow_consumer : single request with response streaming with "
+              "slow client consumer;\n"
+              "status_code_and_message: verify status code & message;\n"
+              "timeout_on_sleeping_server: deadline exceeds on stream;\n");
 DEFINE_string(default_service_account, "",
               "Email of GCE default service account");
 DEFINE_string(service_account_key_file, "",
@@ -104,14 +107,18 @@ int main(int argc, char** argv) {
     client.DoEmpty();
   } else if (FLAGS_test_case == "large_unary") {
     client.DoLargeUnary();
-  } else if (FLAGS_test_case == "large_compressed_unary") {
-    client.DoLargeCompressedUnary();
+  } else if (FLAGS_test_case == "server_compressed_unary") {
+    client.DoServerCompressedUnary();
+  } else if (FLAGS_test_case == "client_compressed_unary") {
+    client.DoClientCompressedUnary();
   } else if (FLAGS_test_case == "client_streaming") {
     client.DoRequestStreaming();
   } else if (FLAGS_test_case == "server_streaming") {
     client.DoResponseStreaming();
   } else if (FLAGS_test_case == "server_compressed_streaming") {
-    client.DoResponseCompressedStreaming();
+    client.DoServerCompressedStreaming();
+  } else if (FLAGS_test_case == "client_compressed_streaming") {
+    client.DoClientCompressedStreaming();
   } else if (FLAGS_test_case == "slow_consumer") {
     client.DoResponseStreamingWithSlowConsumer();
   } else if (FLAGS_test_case == "half_duplex") {
@@ -144,9 +151,12 @@ int main(int argc, char** argv) {
   } else if (FLAGS_test_case == "all") {
     client.DoEmpty();
     client.DoLargeUnary();
+    client.DoClientCompressedUnary();
+    client.DoServerCompressedUnary();
     client.DoRequestStreaming();
     client.DoResponseStreaming();
-    client.DoResponseCompressedStreaming();
+    client.DoClientCompressedStreaming();
+    client.DoServerCompressedStreaming();
     client.DoHalfDuplex();
     client.DoPingPong();
     client.DoCancelAfterBegin();
@@ -165,15 +175,35 @@ int main(int argc, char** argv) {
     }
     // compute_engine_creds only runs in GCE.
   } else {
-    gpr_log(
-        GPR_ERROR,
-        "Unsupported test case %s. Valid options are all|empty_unary|"
-        "large_unary|large_compressed_unary|client_streaming|server_streaming|"
-        "server_compressed_streaming|half_duplex|ping_pong|cancel_after_begin|"
-        "cancel_after_first_response|timeout_on_sleeping_server|empty_stream|"
-        "compute_engine_creds|jwt_token_creds|oauth2_auth_token|per_rpc_creds|"
-        "status_code_and_message|custom_metadata",
-        FLAGS_test_case.c_str());
+    const char* testcases[] = {"all",
+                               "cancel_after_begin",
+                               "cancel_after_first_response",
+                               "client_compressed_streaming",
+                               "client_compressed_unary",
+                               "client_streaming",
+                               "compute_engine_creds",
+                               "custom_metadata",
+                               "empty_stream",
+                               "empty_unary",
+                               "half_duplex",
+                               "jwt_token_creds",
+                               "large_unary",
+                               "oauth2_auth_token",
+                               "oauth2_auth_token",
+                               "per_rpc_creds",
+                               "per_rpc_creds",
+                               "ping_pong",
+                               "server_compressed_streaming",
+                               "server_compressed_unary",
+                               "server_streaming",
+                               "status_code_and_message",
+                               "timeout_on_sleeping_server"};
+    char* joined_testcases =
+        gpr_strjoin_sep(testcases, GPR_ARRAY_SIZE(testcases), "\n", NULL);
+
+    gpr_log(GPR_ERROR, "Unsupported test case %s. Valid options are\n%s",
+            FLAGS_test_case.c_str(), joined_testcases);
+    gpr_free(joined_testcases);
     ret = 1;
   }
 
diff --git a/test/cpp/interop/interop_client.cc b/test/cpp/interop/interop_client.cc
index 608f902d6f..89f841dbe9 100644
--- a/test/cpp/interop/interop_client.cc
+++ b/test/cpp/interop/interop_client.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -57,7 +57,7 @@ namespace testing {
 namespace {
 // The same value is defined by the Java client.
 const std::vector<int> request_stream_sizes = {27182, 8, 1828, 45904};
-const std::vector<int> response_stream_sizes = {31415, 59, 2653, 58979};
+const std::vector<int> response_stream_sizes = {31415, 9, 2653, 58979};
 const int kNumResponseMessages = 2000;
 const int kResponseMessageSize = 1030;
 const int kReceiveDelayMilliSeconds = 20;
@@ -67,28 +67,23 @@ const int kLargeResponseSize = 314159;
 void NoopChecks(const InteropClientContextInspector& inspector,
                 const SimpleRequest* request, const SimpleResponse* response) {}
 
-void CompressionChecks(const InteropClientContextInspector& inspector,
-                       const SimpleRequest* request,
-                       const SimpleResponse* response) {
+void UnaryCompressionChecks(const InteropClientContextInspector& inspector,
+                            const SimpleRequest* request,
+                            const SimpleResponse* response) {
   const grpc_compression_algorithm received_compression =
       inspector.GetCallCompressionAlgorithm();
-  if (request->request_compressed_response() &&
-      received_compression == GRPC_COMPRESS_NONE) {
-    if (request->request_compressed_response() &&
-        received_compression == GRPC_COMPRESS_NONE) {
+  if (request->response_compressed().value()) {
+    if (received_compression == GRPC_COMPRESS_NONE) {
       // Requested some compression, got NONE. This is an error.
       gpr_log(GPR_ERROR,
               "Failure: Requested compression but got uncompressed response "
               "from server.");
       abort();
     }
-  }
-  if (!request->request_compressed_response()) {
-    GPR_ASSERT(!(inspector.GetMessageFlags() & GRPC_WRITE_INTERNAL_COMPRESS));
-  } else if (request->response_type() == PayloadType::COMPRESSABLE) {
-    // requested compression and compressable response => results should always
-    // be compressed.
     GPR_ASSERT(inspector.GetMessageFlags() & GRPC_WRITE_INTERNAL_COMPRESS);
+  } else {
+    // Didn't request compression -> make sure the response is uncompressed
+    GPR_ASSERT(!(inspector.GetMessageFlags() & GRPC_WRITE_INTERNAL_COMPRESS));
   }
 }
 }  // namespace
@@ -190,11 +185,16 @@ bool InteropClient::PerformLargeUnary(SimpleRequest* request,
                                       CheckerFn custom_checks_fn) {
   ClientContext context;
   InteropClientContextInspector inspector(context);
-  // If the request doesn't already specify the response type, default to
-  // COMPRESSABLE.
   request->set_response_size(kLargeResponseSize);
   grpc::string payload(kLargeRequestSize, '\0');
   request->mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+  if (request->has_expect_compressed()) {
+    if (request->expect_compressed().value()) {
+      context.set_compression_algorithm(GRPC_COMPRESS_GZIP);
+    } else {
+      context.set_compression_algorithm(GRPC_COMPRESS_NONE);
+    }
+  }
 
   Status s = serviceStub_.Get()->UnaryCall(&context, *request, response);
   if (!AssertStatusOk(s)) {
@@ -204,27 +204,8 @@ bool InteropClient::PerformLargeUnary(SimpleRequest* request,
   custom_checks_fn(inspector, request, response);
 
   // Payload related checks.
-  GPR_ASSERT(response->payload().type() == request->response_type());
-  switch (response->payload().type()) {
-    case PayloadType::COMPRESSABLE:
-      GPR_ASSERT(response->payload().body() ==
-                 grpc::string(kLargeResponseSize, '\0'));
-      break;
-    case PayloadType::UNCOMPRESSABLE: {
-      // We don't really check anything: We can't assert that the payload is
-      // uncompressed because it's the server's prerogative to decide on that,
-      // and different implementations decide differently (ie, Java always
-      // compresses when requested to do so, whereas C core throws away the
-      // compressed payload if the output is larger than the input).
-      // In addition, we don't compare the actual random bytes received because
-      // asserting that data is sent/received properly isn't the purpose of this
-      // test. Moreover, different implementations are also free to use
-      // different sets of random bytes.
-    } break;
-    default:
-      GPR_ASSERT(false);
-  }
-
+  GPR_ASSERT(response->payload().body() ==
+             grpc::string(kLargeResponseSize, '\0'));
   return true;
 }
 
@@ -237,7 +218,6 @@ bool InteropClient::DoComputeEngineCreds(
   SimpleResponse response;
   request.set_fill_username(true);
   request.set_fill_oauth_scope(true);
-  request.set_response_type(PayloadType::COMPRESSABLE);
 
   if (!PerformLargeUnary(&request, &response)) {
     return false;
@@ -311,7 +291,6 @@ bool InteropClient::DoJwtTokenCreds(const grpc::string& username) {
   SimpleRequest request;
   SimpleResponse response;
   request.set_fill_username(true);
-  request.set_response_type(PayloadType::COMPRESSABLE);
 
   if (!PerformLargeUnary(&request, &response)) {
     return false;
@@ -327,7 +306,6 @@ bool InteropClient::DoLargeUnary() {
   gpr_log(GPR_DEBUG, "Sending a large unary rpc...");
   SimpleRequest request;
   SimpleResponse response;
-  request.set_response_type(PayloadType::COMPRESSABLE);
   if (!PerformLargeUnary(&request, &response)) {
     return false;
   }
@@ -335,32 +313,73 @@ bool InteropClient::DoLargeUnary() {
   return true;
 }
 
-bool InteropClient::DoLargeCompressedUnary() {
-  const bool request_compression[] = {false, true};
-  const PayloadType payload_types[] = {COMPRESSABLE, UNCOMPRESSABLE};
-  for (size_t i = 0; i < GPR_ARRAY_SIZE(payload_types); i++) {
-    for (size_t j = 0; j < GPR_ARRAY_SIZE(request_compression); j++) {
-      char* log_suffix;
-      gpr_asprintf(&log_suffix, "(compression=%s; payload=%s)",
-                   request_compression[j] ? "true" : "false",
-                   PayloadType_Name(payload_types[i]).c_str());
-
-      gpr_log(GPR_DEBUG, "Sending a large compressed unary rpc %s.",
-              log_suffix);
-      SimpleRequest request;
-      SimpleResponse response;
-      request.set_response_type(payload_types[i]);
-      request.set_request_compressed_response(request_compression[j]);
-
-      if (!PerformLargeUnary(&request, &response, CompressionChecks)) {
-        gpr_log(GPR_ERROR, "Large compressed unary failed %s", log_suffix);
-        gpr_free(log_suffix);
-        return false;
-      }
-
-      gpr_log(GPR_DEBUG, "Large compressed unary done %s.", log_suffix);
+bool InteropClient::DoClientCompressedUnary() {
+  // Probing for compression-checks support.
+  ClientContext probe_context;
+  SimpleRequest probe_req;
+  SimpleResponse probe_res;
+
+  probe_context.set_compression_algorithm(GRPC_COMPRESS_NONE);
+  probe_req.mutable_expect_compressed()->set_value(true);  // lies!
+
+  probe_req.set_response_size(kLargeResponseSize);
+  probe_req.mutable_payload()->set_body(grpc::string(kLargeRequestSize, '\0'));
+
+  gpr_log(GPR_DEBUG, "Sending probe for compressed unary request.");
+  const Status s =
+      serviceStub_.Get()->UnaryCall(&probe_context, probe_req, &probe_res);
+  if (s.error_code() != grpc::StatusCode::INVALID_ARGUMENT) {
+    // The server isn't able to evaluate incoming compression, making the rest
+    // of this test moot.
+    gpr_log(GPR_DEBUG, "Compressed unary request probe failed");
+    return false;
+  }
+  gpr_log(GPR_DEBUG, "Compressed unary request probe succeeded. Proceeding.");
+
+  const std::vector<bool> compressions = {true, false};
+  for (size_t i = 0; i < compressions.size(); i++) {
+    char* log_suffix;
+    gpr_asprintf(&log_suffix, "(compression=%s)",
+                 compressions[i] ? "true" : "false");
+
+    gpr_log(GPR_DEBUG, "Sending compressed unary request %s.", log_suffix);
+    SimpleRequest request;
+    SimpleResponse response;
+    request.mutable_expect_compressed()->set_value(compressions[i]);
+    if (!PerformLargeUnary(&request, &response, UnaryCompressionChecks)) {
+      gpr_log(GPR_ERROR, "Compressed unary request failed %s", log_suffix);
+      gpr_free(log_suffix);
+      return false;
+    }
+
+    gpr_log(GPR_DEBUG, "Compressed unary request failed %s", log_suffix);
+    gpr_free(log_suffix);
+  }
+
+  return true;
+}
+
+bool InteropClient::DoServerCompressedUnary() {
+  const std::vector<bool> compressions = {true, false};
+  for (size_t i = 0; i < compressions.size(); i++) {
+    char* log_suffix;
+    gpr_asprintf(&log_suffix, "(compression=%s)",
+                 compressions[i] ? "true" : "false");
+
+    gpr_log(GPR_DEBUG, "Sending unary request for compressed response %s.",
+            log_suffix);
+    SimpleRequest request;
+    SimpleResponse response;
+    request.mutable_response_compressed()->set_value(compressions[i]);
+
+    if (!PerformLargeUnary(&request, &response, UnaryCompressionChecks)) {
+      gpr_log(GPR_ERROR, "Request for compressed unary failed %s", log_suffix);
       gpr_free(log_suffix);
+      return false;
     }
+
+    gpr_log(GPR_DEBUG, "Request for compressed unary failed %s", log_suffix);
+    gpr_free(log_suffix);
   }
 
   return true;
@@ -387,7 +406,7 @@ bool InteropClient::DoRequestStreaming() {
       serviceStub_.Get()->StreamingInputCall(&context, &response));
 
   int aggregated_payload_size = 0;
-  for (unsigned int i = 0; i < request_stream_sizes.size(); ++i) {
+  for (size_t i = 0; i < request_stream_sizes.size(); ++i) {
     Payload* payload = request.mutable_payload();
     payload->set_body(grpc::string(request_stream_sizes[i], '\0'));
     if (!stream->Write(request)) {
@@ -396,7 +415,7 @@ bool InteropClient::DoRequestStreaming() {
     }
     aggregated_payload_size += request_stream_sizes[i];
   }
-  stream->WritesDone();
+  GPR_ASSERT(stream->WritesDone());
 
   Status s = stream->Finish();
   if (!AssertStatusOk(s)) {
@@ -446,92 +465,129 @@ bool InteropClient::DoResponseStreaming() {
   return true;
 }
 
-bool InteropClient::DoResponseCompressedStreaming() {
-  const bool request_compression[] = {false, true};
-  const PayloadType payload_types[] = {COMPRESSABLE, UNCOMPRESSABLE};
-  for (size_t i = 0; i < GPR_ARRAY_SIZE(payload_types); i++) {
-    for (size_t j = 0; j < GPR_ARRAY_SIZE(request_compression); j++) {
-      ClientContext context;
-      InteropClientContextInspector inspector(context);
-      StreamingOutputCallRequest request;
-
-      char* log_suffix;
-      gpr_asprintf(&log_suffix, "(compression=%s; payload=%s)",
-                   request_compression[j] ? "true" : "false",
-                   PayloadType_Name(payload_types[i]).c_str());
-
-      gpr_log(GPR_DEBUG, "Receiving response streaming rpc %s.", log_suffix);
-
-      request.set_response_type(payload_types[i]);
-      request.set_request_compressed_response(request_compression[j]);
-
-      for (size_t k = 0; k < response_stream_sizes.size(); ++k) {
-        ResponseParameters* response_parameter =
-            request.add_response_parameters();
-        response_parameter->set_size(response_stream_sizes[k]);
-      }
-      StreamingOutputCallResponse response;
-
-      std::unique_ptr<ClientReader<StreamingOutputCallResponse>> stream(
-          serviceStub_.Get()->StreamingOutputCall(&context, request));
-
-      size_t k = 0;
-      while (stream->Read(&response)) {
-        // Payload related checks.
-        GPR_ASSERT(response.payload().type() == request.response_type());
-        switch (response.payload().type()) {
-          case PayloadType::COMPRESSABLE:
-            GPR_ASSERT(response.payload().body() ==
-                       grpc::string(response_stream_sizes[k], '\0'));
-            break;
-          case PayloadType::UNCOMPRESSABLE:
-            break;
-          default:
-            GPR_ASSERT(false);
-        }
-
-        // Compression related checks.
-        if (request.request_compressed_response()) {
-          GPR_ASSERT(inspector.GetCallCompressionAlgorithm() >
-                     GRPC_COMPRESS_NONE);
-          if (request.response_type() == PayloadType::COMPRESSABLE) {
-            // requested compression and compressable response => results should
-            // always be compressed.
-            GPR_ASSERT(inspector.GetMessageFlags() &
-                       GRPC_WRITE_INTERNAL_COMPRESS);
-          }
-        } else {
-          // requested *no* compression.
-          GPR_ASSERT(
-              !(inspector.GetMessageFlags() & GRPC_WRITE_INTERNAL_COMPRESS));
-        }
-
-        ++k;
-      }
-
-      gpr_log(GPR_DEBUG, "Response streaming done %s.", log_suffix);
-      gpr_free(log_suffix);
+bool InteropClient::DoClientCompressedStreaming() {
+  // Probing for compression-checks support.
+  ClientContext probe_context;
+  StreamingInputCallRequest probe_req;
+  StreamingInputCallResponse probe_res;
+
+  probe_context.set_compression_algorithm(GRPC_COMPRESS_NONE);
+  probe_req.mutable_expect_compressed()->set_value(true);  // lies!
+  probe_req.mutable_payload()->set_body(grpc::string(27182, '\0'));
+
+  gpr_log(GPR_DEBUG, "Sending probe for compressed streaming request.");
+
+  std::unique_ptr<ClientWriter<StreamingInputCallRequest>> probe_stream(
+      serviceStub_.Get()->StreamingInputCall(&probe_context, &probe_res));
+
+  if (!probe_stream->Write(probe_req)) {
+    gpr_log(GPR_ERROR, "%s(): stream->Write() failed", __func__);
+    return TransientFailureOrAbort();
+  }
+  Status s = probe_stream->Finish();
+  if (s.error_code() != grpc::StatusCode::INVALID_ARGUMENT) {
+    // The server isn't able to evaluate incoming compression, making the rest
+    // of this test moot.
+    gpr_log(GPR_DEBUG, "Compressed streaming request probe failed");
+    return false;
+  }
+  gpr_log(GPR_DEBUG,
+          "Compressed streaming request probe succeeded. Proceeding.");
+
+  ClientContext context;
+  StreamingInputCallRequest request;
+  StreamingInputCallResponse response;
+
+  context.set_compression_algorithm(GRPC_COMPRESS_GZIP);
+  std::unique_ptr<ClientWriter<StreamingInputCallRequest>> stream(
+      serviceStub_.Get()->StreamingInputCall(&context, &response));
+
+  request.mutable_payload()->set_body(grpc::string(27182, '\0'));
+  request.mutable_expect_compressed()->set_value(true);
+  gpr_log(GPR_DEBUG, "Sending streaming request with compression enabled");
+  if (!stream->Write(request)) {
+    gpr_log(GPR_ERROR, "%s(): stream->Write() failed", __func__);
+    return TransientFailureOrAbort();
+  }
+
+  WriteOptions wopts;
+  wopts.set_no_compression();
+  request.mutable_payload()->set_body(grpc::string(45904, '\0'));
+  request.mutable_expect_compressed()->set_value(false);
+  gpr_log(GPR_DEBUG, "Sending streaming request with compression disabled");
+  if (!stream->Write(request, wopts)) {
+    gpr_log(GPR_ERROR, "%s(): stream->Write() failed", __func__);
+    return TransientFailureOrAbort();
+  }
+  GPR_ASSERT(stream->WritesDone());
+
+  s = stream->Finish();
+  if (!AssertStatusOk(s)) {
+    return false;
+  }
+
+  return true;
+}
 
-      if (k < response_stream_sizes.size()) {
-        // stream->Read() failed before reading all the expected messages. This
-        // is most likely due to a connection failure.
-        gpr_log(GPR_ERROR,
-                "DoResponseCompressedStreaming(): Responses read (k=%" PRIuPTR
-                ") is "
-                "less than the expected messages (i.e "
-                "response_stream_sizes.size() (%" PRIuPTR ")). (i=%" PRIuPTR
-                ", j=%" PRIuPTR ")",
-                k, response_stream_sizes.size(), i, j);
-        return TransientFailureOrAbort();
-      }
-
-      Status s = stream->Finish();
-      if (!AssertStatusOk(s)) {
-        return false;
-      }
+bool InteropClient::DoServerCompressedStreaming() {
+  const std::vector<bool> compressions = {true, false};
+  const std::vector<int> sizes = {31415, 92653};
+
+  ClientContext context;
+  InteropClientContextInspector inspector(context);
+  StreamingOutputCallRequest request;
+
+  GPR_ASSERT(compressions.size() == sizes.size());
+  for (size_t i = 0; i < sizes.size(); i++) {
+    char* log_suffix;
+    gpr_asprintf(&log_suffix, "(compression=%s; size=%d)",
+                 compressions[i] ? "true" : "false", sizes[i]);
+
+    gpr_log(GPR_DEBUG, "Sending request streaming rpc %s.", log_suffix);
+    gpr_free(log_suffix);
+
+    ResponseParameters* const response_parameter =
+        request.add_response_parameters();
+    response_parameter->mutable_compressed()->set_value(compressions[i]);
+    response_parameter->set_size(sizes[i]);
+  }
+  std::unique_ptr<ClientReader<StreamingOutputCallResponse>> stream(
+      serviceStub_.Get()->StreamingOutputCall(&context, request));
+
+  size_t k = 0;
+  StreamingOutputCallResponse response;
+  while (stream->Read(&response)) {
+    // Payload size checks.
+    GPR_ASSERT(response.payload().body() ==
+               grpc::string(request.response_parameters(k).size(), '\0'));
+
+    // Compression checks.
+    GPR_ASSERT(request.response_parameters(k).has_compressed());
+    if (request.response_parameters(k).compressed().value()) {
+      GPR_ASSERT(inspector.GetCallCompressionAlgorithm() > GRPC_COMPRESS_NONE);
+      GPR_ASSERT(inspector.GetMessageFlags() & GRPC_WRITE_INTERNAL_COMPRESS);
+    } else {
+      // requested *no* compression.
+      GPR_ASSERT(!(inspector.GetMessageFlags() & GRPC_WRITE_INTERNAL_COMPRESS));
     }
+    ++k;
+  }
+
+  if (k < sizes.size()) {
+    // stream->Read() failed before reading all the expected messages. This
+    // is most likely due to a connection failure.
+    gpr_log(GPR_ERROR, "%s(): Responses read (k=%" PRIuPTR
+                       ") is "
+                       "less than the expected messages (i.e "
+                       "response_stream_sizes.size() (%" PRIuPTR ")).",
+            __func__, k, response_stream_sizes.size());
+    return TransientFailureOrAbort();
   }
 
+  Status s = stream->Finish();
+  if (!AssertStatusOk(s)) {
+    return false;
+  }
   return true;
 }
 
@@ -632,7 +688,6 @@ bool InteropClient::DoPingPong() {
       stream(serviceStub_.Get()->FullDuplexCall(&context));
 
   StreamingOutputCallRequest request;
-  request.set_response_type(PayloadType::COMPRESSABLE);
   ResponseParameters* response_parameter = request.add_response_parameters();
   Payload* payload = request.mutable_payload();
   StreamingOutputCallResponse response;
@@ -699,7 +754,6 @@ bool InteropClient::DoCancelAfterFirstResponse() {
       stream(serviceStub_.Get()->FullDuplexCall(&context));
 
   StreamingOutputCallRequest request;
-  request.set_response_type(PayloadType::COMPRESSABLE);
   ResponseParameters* response_parameter = request.add_response_parameters();
   response_parameter->set_size(31415);
   request.mutable_payload()->set_body(grpc::string(27182, '\0'));
@@ -839,7 +893,6 @@ bool InteropClient::DoCustomMetadata() {
         stream(serviceStub_.Get()->FullDuplexCall(&context));
 
     StreamingOutputCallRequest request;
-    request.set_response_type(PayloadType::COMPRESSABLE);
     ResponseParameters* response_parameter = request.add_response_parameters();
     response_parameter->set_size(kLargeResponseSize);
     grpc::string payload(kLargeRequestSize, '\0');
diff --git a/test/cpp/interop/interop_client.h b/test/cpp/interop/interop_client.h
index c8d6810c12..eb886fcb7e 100644
--- a/test/cpp/interop/interop_client.h
+++ b/test/cpp/interop/interop_client.h
@@ -64,12 +64,14 @@ class InteropClient {
 
   bool DoEmpty();
   bool DoLargeUnary();
-  bool DoLargeCompressedUnary();
+  bool DoServerCompressedUnary();
+  bool DoClientCompressedUnary();
   bool DoPingPong();
   bool DoHalfDuplex();
   bool DoRequestStreaming();
   bool DoResponseStreaming();
-  bool DoResponseCompressedStreaming();
+  bool DoServerCompressedStreaming();
+  bool DoClientCompressedStreaming();
   bool DoResponseStreamingWithSlowConsumer();
   bool DoCancelAfterBegin();
   bool DoCancelAfterFirstResponse();
diff --git a/test/cpp/interop/server_main.cc b/test/cpp/interop/interop_server.cc
index 062857f3d6..ebef0002a3 100644
--- a/test/cpp/interop/server_main.cc
+++ b/test/cpp/interop/interop_server.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -48,6 +48,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
+#include "src/core/lib/transport/byte_stream.h"
 #include "src/proto/grpc/testing/empty.grpc.pb.h"
 #include "src/proto/grpc/testing/messages.grpc.pb.h"
 #include "src/proto/grpc/testing/test.grpc.pb.h"
@@ -64,10 +65,10 @@ using grpc::ServerCredentials;
 using grpc::ServerReader;
 using grpc::ServerReaderWriter;
 using grpc::ServerWriter;
+using grpc::WriteOptions;
 using grpc::SslServerCredentialsOptions;
 using grpc::testing::InteropServerContextInspector;
 using grpc::testing::Payload;
-using grpc::testing::PayloadType;
 using grpc::testing::SimpleRequest;
 using grpc::testing::SimpleResponse;
 using grpc::testing::StreamingInputCallRequest;
@@ -78,7 +79,6 @@ using grpc::testing::TestService;
 using grpc::Status;
 
 static bool got_sigint = false;
-static const char* kRandomFile = "test/cpp/interop/rnd.dat";
 
 const char kEchoInitialMetadataKey[] = "x-grpc-test-echo-initial";
 const char kEchoTrailingBinMetadataKey[] = "x-grpc-test-echo-trailing-bin";
@@ -110,34 +110,41 @@ void MaybeEchoMetadata(ServerContext* context) {
   }
 }
 
-bool SetPayload(PayloadType response_type, int size, Payload* payload) {
-  payload->set_type(response_type);
-  switch (response_type) {
-    case PayloadType::COMPRESSABLE: {
-      std::unique_ptr<char[]> body(new char[size]());
-      payload->set_body(body.get(), size);
-    } break;
-    case PayloadType::UNCOMPRESSABLE: {
-      std::unique_ptr<char[]> body(new char[size]());
-      std::ifstream rnd_file(kRandomFile);
-      GPR_ASSERT(rnd_file.good());
-      rnd_file.read(body.get(), size);
-      GPR_ASSERT(!rnd_file.eof());  // Requested more rnd bytes than available
-      payload->set_body(body.get(), size);
-    } break;
-    default:
-      GPR_ASSERT(false);
-  }
+bool SetPayload(int size, Payload* payload) {
+  std::unique_ptr<char[]> body(new char[size]());
+  payload->set_body(body.get(), size);
   return true;
 }
 
-template <typename RequestType>
-void SetResponseCompression(ServerContext* context,
-                            const RequestType& request) {
-  if (request.request_compressed_response()) {
-    // Any level would do, let's go for HIGH because we are overachievers.
-    context->set_compression_level(GRPC_COMPRESS_LEVEL_HIGH);
+bool CheckExpectedCompression(const ServerContext& context,
+                              const bool compression_expected) {
+  const InteropServerContextInspector inspector(context);
+  const grpc_compression_algorithm received_compression =
+      inspector.GetCallCompressionAlgorithm();
+
+  if (compression_expected) {
+    if (received_compression == GRPC_COMPRESS_NONE) {
+      // Expected some compression, got NONE. This is an error.
+      gpr_log(GPR_ERROR,
+              "Expected compression but got uncompressed request from client.");
+      return false;
+    }
+    if (!(inspector.GetMessageFlags() & GRPC_WRITE_INTERNAL_COMPRESS)) {
+      gpr_log(GPR_ERROR,
+              "Failure: Requested compression in a compressable request, but "
+              "compression bit in message flags not set.");
+      return false;
+    }
+  } else {
+    // Didn't expect compression -> make sure the request is uncompressed
+    if (inspector.GetMessageFlags() & GRPC_WRITE_INTERNAL_COMPRESS) {
+      gpr_log(GPR_ERROR,
+              "Failure: Didn't requested compression, but compression bit in "
+              "message flags set.");
+      return false;
+    }
   }
+  return true;
 }
 
 class TestServiceImpl : public TestService::Service {
@@ -151,11 +158,26 @@ class TestServiceImpl : public TestService::Service {
   Status UnaryCall(ServerContext* context, const SimpleRequest* request,
                    SimpleResponse* response) {
     MaybeEchoMetadata(context);
-    SetResponseCompression(context, *request);
+    if (request->has_response_compressed()) {
+      const bool compression_requested = request->response_compressed().value();
+      gpr_log(GPR_DEBUG, "Request for compression (%s) present for %s",
+              compression_requested ? "enabled" : "disabled", __func__);
+      if (compression_requested) {
+        // Any level would do, let's go for HIGH because we are overachievers.
+        context->set_compression_level(GRPC_COMPRESS_LEVEL_HIGH);
+      } else {
+        context->set_compression_level(GRPC_COMPRESS_LEVEL_NONE);
+      }
+    }
+    if (!CheckExpectedCompression(*context,
+                                  request->expect_compressed().value())) {
+      return Status(grpc::StatusCode::INVALID_ARGUMENT,
+                    "Compressed request expectation not met.");
+    }
     if (request->response_size() > 0) {
-      if (!SetPayload(request->response_type(), request->response_size(),
-                      response->mutable_payload())) {
-        return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
+      if (!SetPayload(request->response_size(), response->mutable_payload())) {
+        return Status(grpc::StatusCode::INVALID_ARGUMENT,
+                      "Error creating payload.");
       }
     }
 
@@ -171,15 +193,26 @@ class TestServiceImpl : public TestService::Service {
   Status StreamingOutputCall(
       ServerContext* context, const StreamingOutputCallRequest* request,
       ServerWriter<StreamingOutputCallResponse>* writer) {
-    SetResponseCompression(context, *request);
     StreamingOutputCallResponse response;
     bool write_success = true;
     for (int i = 0; write_success && i < request->response_parameters_size();
          i++) {
-      if (!SetPayload(request->response_type(),
-                      request->response_parameters(i).size(),
+      if (!SetPayload(request->response_parameters(i).size(),
                       response.mutable_payload())) {
-        return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
+        return Status(grpc::StatusCode::INVALID_ARGUMENT,
+                      "Error creating payload.");
+      }
+      WriteOptions wopts;
+      if (request->response_parameters(i).has_compressed()) {
+        // Compress by default. Disabled on a per-message basis.
+        context->set_compression_level(GRPC_COMPRESS_LEVEL_HIGH);
+        const bool compression_requested =
+            request->response_parameters(i).compressed().value();
+        gpr_log(GPR_DEBUG, "Request for compression (%s) present for %s",
+                compression_requested ? "enabled" : "disabled", __func__);
+        if (!compression_requested) {
+          wopts.set_no_compression();
+        }  // else, compression is already enabled via the context.
       }
       int time_us;
       if ((time_us = request->response_parameters(i).interval_us()) > 0) {
@@ -189,7 +222,7 @@ class TestServiceImpl : public TestService::Service {
                          gpr_time_from_micros(time_us, GPR_TIMESPAN));
         gpr_sleep_until(sleep_time);
       }
-      write_success = writer->Write(response);
+      write_success = writer->Write(response, wopts);
     }
     if (write_success) {
       return Status::OK;
@@ -204,6 +237,11 @@ class TestServiceImpl : public TestService::Service {
     StreamingInputCallRequest request;
     int aggregated_payload_size = 0;
     while (reader->Read(&request)) {
+      if (!CheckExpectedCompression(*context,
+                                    request.expect_compressed().value())) {
+        return Status(grpc::StatusCode::INVALID_ARGUMENT,
+                      "Compressed request expectation not met.");
+      }
       if (request.has_payload()) {
         aggregated_payload_size += request.payload().body().size();
       }
@@ -221,7 +259,6 @@ class TestServiceImpl : public TestService::Service {
     StreamingOutputCallResponse response;
     bool write_success = true;
     while (write_success && stream->Read(&request)) {
-      SetResponseCompression(context, request);
       if (request.response_parameters_size() != 0) {
         response.mutable_payload()->set_type(request.payload().type());
         response.mutable_payload()->set_body(
diff --git a/test/cpp/interop/rnd.dat b/test/cpp/interop/rnd.dat
deleted file mode 100644
index 8c7f38f9e0..0000000000
--- a/test/cpp/interop/rnd.dat
+++ /dev/null
diff --git a/test/cpp/interop/server_helper.cc b/test/cpp/interop/server_helper.cc
index c6d891ad71..8b0b511bcb 100644
--- a/test/cpp/interop/server_helper.cc
+++ b/test/cpp/interop/server_helper.cc
@@ -72,6 +72,10 @@ uint32_t InteropServerContextInspector::GetEncodingsAcceptedByClient() const {
   return grpc_call_test_only_get_encodings_accepted_by_peer(context_.call_);
 }
 
+uint32_t InteropServerContextInspector::GetMessageFlags() const {
+  return grpc_call_test_only_get_message_flags(context_.call_);
+}
+
 std::shared_ptr<const AuthContext>
 InteropServerContextInspector::GetAuthContext() const {
   return context_.auth_context();
diff --git a/test/cpp/interop/server_helper.h b/test/cpp/interop/server_helper.h
index 12865e4032..a1da14a4c8 100644
--- a/test/cpp/interop/server_helper.h
+++ b/test/cpp/interop/server_helper.h
@@ -54,6 +54,7 @@ class InteropServerContextInspector {
   bool IsCancelled() const;
   grpc_compression_algorithm GetCallCompressionAlgorithm() const;
   uint32_t GetEncodingsAcceptedByClient() const;
+  uint32_t GetMessageFlags() const;
 
  private:
   const ::grpc::ServerContext& context_;
diff --git a/test/cpp/interop/stress_interop_client.cc b/test/cpp/interop/stress_interop_client.cc
index aa95682e74..1d5fc80cf2 100644
--- a/test/cpp/interop/stress_interop_client.cc
+++ b/test/cpp/interop/stress_interop_client.cc
@@ -138,8 +138,12 @@ bool StressTestInteropClient::RunTest(TestCaseType test_case) {
       is_success = interop_client_->DoLargeUnary();
       break;
     }
-    case LARGE_COMPRESSED_UNARY: {
-      is_success = interop_client_->DoLargeCompressedUnary();
+    case CLIENT_COMPRESSED_UNARY: {
+      is_success = interop_client_->DoClientCompressedUnary();
+      break;
+    }
+    case CLIENT_COMPRESSED_STREAMING: {
+      is_success = interop_client_->DoClientCompressedStreaming();
       break;
     }
     case CLIENT_STREAMING: {
@@ -150,8 +154,12 @@ bool StressTestInteropClient::RunTest(TestCaseType test_case) {
       is_success = interop_client_->DoResponseStreaming();
       break;
     }
+    case SERVER_COMPRESSED_UNARY: {
+      is_success = interop_client_->DoServerCompressedUnary();
+      break;
+    }
     case SERVER_COMPRESSED_STREAMING: {
-      is_success = interop_client_->DoResponseCompressedStreaming();
+      is_success = interop_client_->DoServerCompressedStreaming();
       break;
     }
     case SLOW_CONSUMER: {
diff --git a/test/cpp/interop/stress_interop_client.h b/test/cpp/interop/stress_interop_client.h
index aa93b58b4a..cf6a713473 100644
--- a/test/cpp/interop/stress_interop_client.h
+++ b/test/cpp/interop/stress_interop_client.h
@@ -51,29 +51,33 @@ using std::vector;
 
 enum TestCaseType {
   UNKNOWN_TEST = -1,
-  EMPTY_UNARY = 0,
-  LARGE_UNARY = 1,
-  LARGE_COMPRESSED_UNARY = 2,
-  CLIENT_STREAMING = 3,
-  SERVER_STREAMING = 4,
-  SERVER_COMPRESSED_STREAMING = 5,
-  SLOW_CONSUMER = 6,
-  HALF_DUPLEX = 7,
-  PING_PONG = 8,
-  CANCEL_AFTER_BEGIN = 9,
-  CANCEL_AFTER_FIRST_RESPONSE = 10,
-  TIMEOUT_ON_SLEEPING_SERVER = 11,
-  EMPTY_STREAM = 12,
-  STATUS_CODE_AND_MESSAGE = 13,
-  CUSTOM_METADATA = 14
+  EMPTY_UNARY,
+  LARGE_UNARY,
+  CLIENT_COMPRESSED_UNARY,
+  CLIENT_COMPRESSED_STREAMING,
+  CLIENT_STREAMING,
+  SERVER_STREAMING,
+  SERVER_COMPRESSED_UNARY,
+  SERVER_COMPRESSED_STREAMING,
+  SLOW_CONSUMER,
+  HALF_DUPLEX,
+  PING_PONG,
+  CANCEL_AFTER_BEGIN,
+  CANCEL_AFTER_FIRST_RESPONSE,
+  TIMEOUT_ON_SLEEPING_SERVER,
+  EMPTY_STREAM,
+  STATUS_CODE_AND_MESSAGE,
+  CUSTOM_METADATA
 };
 
 const vector<pair<TestCaseType, grpc::string>> kTestCaseList = {
     {EMPTY_UNARY, "empty_unary"},
     {LARGE_UNARY, "large_unary"},
-    {LARGE_COMPRESSED_UNARY, "large_compressed_unary"},
+    {CLIENT_COMPRESSED_UNARY, "client_compressed_unary"},
+    {CLIENT_COMPRESSED_STREAMING, "client_compressed_streaming"},
     {CLIENT_STREAMING, "client_streaming"},
     {SERVER_STREAMING, "server_streaming"},
+    {SERVER_COMPRESSED_UNARY, "server_compressed_unary"},
     {SERVER_COMPRESSED_STREAMING, "server_compressed_streaming"},
     {SLOW_CONSUMER, "slow_consumer"},
     {HALF_DUPLEX, "half_duplex"},
diff --git a/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile b/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile
new file mode 100644
index 0000000000..9dfc040d73
--- /dev/null
+++ b/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile
@@ -0,0 +1,82 @@
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+FROM microsoft/dotnet:1.0.0-preview1
+
+# Install Git and basic packages.
+RUN apt-get update && apt-get install -y \
+  autoconf \
+  autotools-dev \
+  build-essential \
+  bzip2 \
+  ccache \
+  curl \
+  gcc \
+  gcc-multilib \
+  git \
+  golang \
+  gyp \
+  lcov \
+  libc6 \
+  libc6-dbg \
+  libc6-dev \
+  libgtest-dev \
+  libtool \
+  make \
+  perl \
+  strace \
+  python-dev \
+  python-setuptools \
+  python-yaml \
+  telnet \
+  unzip \
+  wget \
+  zip && apt-get clean
+
+#================
+# Build profiling
+RUN apt-get update && apt-get install -y time && apt-get clean
+
+# Prepare ccache
+RUN ln -s /usr/bin/ccache /usr/local/bin/gcc
+RUN ln -s /usr/bin/ccache /usr/local/bin/g++
+RUN ln -s /usr/bin/ccache /usr/local/bin/cc
+RUN ln -s /usr/bin/ccache /usr/local/bin/c++
+RUN ln -s /usr/bin/ccache /usr/local/bin/clang
+RUN ln -s /usr/bin/ccache /usr/local/bin/clang++
+
+#======================
+# Zookeeper dependencies
+# TODO(jtattermusch): is zookeeper still needed?
+RUN apt-get install -y libzookeeper-mt-dev
+
+RUN mkdir /var/local/jenkins
+
+# Define the default command.
+CMD ["bash"]
diff --git a/tools/profiling/latency_profile/run_latency_profile.sh b/tools/profiling/latency_profile/run_latency_profile.sh
index 54a25a9cb7..618db202dc 100755
--- a/tools/profiling/latency_profile/run_latency_profile.sh
+++ b/tools/profiling/latency_profile/run_latency_profile.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2015, Google Inc.
+# Copyright 2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -28,17 +28,61 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+# format argument via
+# $ echo '{...}' | python -mjson.tool
+read -r -d '' SCENARIOS_JSON_ARG <<'EOF'
+{
+    "scenarios": [
+        {
+            "benchmark_seconds": 5,
+            "client_config": {
+                "client_channels": 1,
+                "client_type": "SYNC_CLIENT",
+                "histogram_params": {
+                    "max_possible": 60000000000.0,
+                    "resolution": 0.01
+                },
+                "load_params": {
+                    "closed_loop": {}
+                },
+                "outstanding_rpcs_per_channel": 1,
+                "payload_config": {
+                    "simple_params": {
+                        "req_size": 0,
+                        "resp_size": 0
+                    }
+                },
+                "rpc_type": "UNARY",
+                "security_params": {
+                    "server_host_override": "foo.test.google.fr",
+                    "use_test_ca": true
+                }
+            },
+            "name": "cpp_protobuf_sync_unary_ping_pong_secure",
+            "num_clients": 1,
+            "num_servers": 1,
+            "server_config": {
+                "core_limit": 1,
+                "security_params": {
+                    "server_host_override": "foo.test.google.fr",
+                    "use_test_ca": true
+                },
+                "server_type": "SYNC_SERVER"
+            },
+            "spawn_local_worker_count": 2,
+            "warmup_seconds": 5
+        }
+    ]
+}
+
+EOF
+
 set -ex
 
 cd $(dirname $0)/../../..
 
-BINS="sync_unary_ping_pong_test sync_streaming_ping_pong_test"
 CPUS=`python -c 'import multiprocessing; print multiprocessing.cpu_count()'`
 
-make CONFIG=basicprof -j$CPUS $BINS
-
-mkdir -p reports
-
 # try to use pypy for generating reports
 # each trace dumps 7-8gig of text to disk, and processing this into a report is
 # heavyweight - so any speed boost is worthwhile
@@ -49,35 +93,14 @@ else
   PYTHON=python2.7
 fi
 
-# start processes, interleaving report index generation
-echo '<html><head></head><body>' > reports/index.html
-for bin in $BINS
-do
-  bins/basicprof/$bin
-  mv latency_trace.txt $bin.trace
-  echo "<a href='$bin.txt'>$bin</a><br/>" >> reports/index.html
-done
-pids=""
-# generate report pages... this will take some time
-# run them in parallel: they take 1 cpu each
-for bin in $BINS
-do
-  $PYTHON tools/profiling/latency_profile/profile_analyzer.py \
-    --source=$bin.trace --fmt=simple > reports/$bin.txt &
-  pids+=" $!"
-done
-echo '</body></html>' >> reports/index.html
+make CONFIG=basicprof -j$CPUS qps_json_driver
 
-# make sure we kill the report generation if something goes wrong
-trap "kill $pids || true" 0
+mkdir -p reports
+bins/basicprof/qps_json_driver --scenarios_json="$SCENARIOS_JSON_ARG"
 
-# finally, wait for the background report generation to finish
-for pid in $pids
-do
-	if wait $pid
-	then
-		echo "Finished $pid"
-	else
-		exit 1
-	fi
-done
+echo '<html><head></head><body>Latency profile for:<br/>' > reports/index.html
+echo "<p><pre>${SCENARIOS_JSON_ARG}</pre></p>" >> reports/index.html
+echo '<p><pre>' >> reports/index.html
+$PYTHON tools/profiling/latency_profile/profile_analyzer.py \
+    --source=latency_trace.txt --fmt=simple >> reports/index.html
+echo '</pre></p></body></html>' >> reports/index.html
diff --git a/tools/run_tests/build_artifact_python.bat b/tools/run_tests/build_artifact_python.bat
index fea0275426..295347e947 100644
--- a/tools/run_tests/build_artifact_python.bat
+++ b/tools/run_tests/build_artifact_python.bat
@@ -37,10 +37,11 @@ set NUGET=C:\nuget\nuget.exe
 
 mkdir src\python\grpcio\grpc\_cython\_windows
 
+@rem TODO(atash): maybe we could avoid the grpc_c.(32|64).python shim below if
+@rem this used the right python build?
 copy /Y vsprojects\Release\grpc_dll.dll src\python\grpcio\grpc\_cython\_windows\grpc_c.32.python || goto :error
 copy /Y vsprojects\x64\Release\grpc_dll.dll src\python\grpcio\grpc\_cython\_windows\grpc_c.64.python || goto :error
 
-
 set PATH=C:\%1;C:\%1\scripts;C:\msys64\mingw%2\bin;%PATH%
 
 pip install --upgrade six
@@ -50,12 +51,6 @@ pip install -rrequirements.txt
 set GRPC_PYTHON_USE_CUSTOM_BDIST=0
 set GRPC_PYTHON_BUILD_WITH_CYTHON=1
 
-@rem TODO(atash): maybe we could avoid the grpc_c.(32|64).python shim above if
-@rem this used the right python build?
-python setup.py bdist_wheel
-
-@rem Build gRPC Python tools
-@rem
 @rem Because this is windows and *everything seems to hate Windows* we have to
 @rem set all of these flags ourselves because Python won't help us (see the
 @rem setup.py of the grpcio_tools project).
@@ -70,6 +65,18 @@ set GRPC_PYTHON_CFLAGS=-fno-wrapv -frtti -std=c++11
 python -c "from distutils.cygwinccompiler import get_msvcr; print(get_msvcr()[0])" > temp.txt
 set /p PYTHON_MSVCR=<temp.txt
 set GRPC_PYTHON_LDFLAGS=-static-libgcc -static-libstdc++ -mcrtdll=%PYTHON_MSVCR% -static -lpthread
+
+
+@rem Build gRPC
+if %2 == 32 (
+  python setup.py build_ext -c mingw32
+) else (
+  python setup.py build_ext -c mingw32 -DMS_WIN64
+)
+python setup.py bdist_wheel
+
+
+@rem Build gRPC Python tools
 python tools\distrib\python\make_grpcio_tools.py
 if %2 == 32 (
   python tools\distrib\python\grpcio_tools\setup.py build_ext -c mingw32
diff --git a/tools/run_tests/build_csharp_coreclr.bat b/tools/run_tests/build_csharp_coreclr.bat
new file mode 100644
index 0000000000..cead6d0e02
--- /dev/null
+++ b/tools/run_tests/build_csharp_coreclr.bat
@@ -0,0 +1,44 @@
+@rem Copyright 2016, Google Inc.
+@rem All rights reserved.
+@rem
+@rem Redistribution and use in source and binary forms, with or without
+@rem modification, are permitted provided that the following conditions are
+@rem met:
+@rem
+@rem     * Redistributions of source code must retain the above copyright
+@rem notice, this list of conditions and the following disclaimer.
+@rem     * Redistributions in binary form must reproduce the above
+@rem copyright notice, this list of conditions and the following disclaimer
+@rem in the documentation and/or other materials provided with the
+@rem distribution.
+@rem     * Neither the name of Google Inc. nor the names of its
+@rem contributors may be used to endorse or promote products derived from
+@rem this software without specific prior written permission.
+@rem
+@rem THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+@rem "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+@rem LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+@rem A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+@rem OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+@rem SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+@rem LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+@rem DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+@rem THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+@rem (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+@rem OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+setlocal
+
+cd /d %~dp0\..\..\src\csharp
+
+dotnet restore . || goto :error
+
+dotnet build -f netstandard1.5 --configuration %MSBUILD_CONFIG% "**/project.json" || goto :error
+
+endlocal
+
+goto :EOF
+
+:error
+echo Failed!
+exit /b %errorlevel%
diff --git a/tools/run_tests/build_csharp_coreclr.sh b/tools/run_tests/build_csharp_coreclr.sh
new file mode 100755
index 0000000000..68c19cb6c9
--- /dev/null
+++ b/tools/run_tests/build_csharp_coreclr.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+set -ex
+
+cd $(dirname $0)/../../src/csharp
+
+# TODO(jtattermusch): introduce caching
+dotnet restore .
+
+dotnet build -f netstandard1.5 --configuration $MSBUILD_CONFIG '**/project.json'
+
+# Grpc.IntegrationTesting doesn't get built by the previous command for some reason.
+# TODO(jtattermusch): get rid of the hack
+dotnet build -f netstandard1.5 --configuration $MSBUILD_CONFIG Grpc.IntegrationTesting/project.json
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index 0787637d75..d76dd4b7d2 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -54,8 +54,13 @@ os.chdir(ROOT)
 
 _DEFAULT_SERVER_PORT=8080
 
-_SKIP_COMPRESSION = ['large_compressed_unary',
-                     'server_compressed_streaming']
+_SKIP_CLIENT_COMPRESSION = ['client_compressed_unary',
+                            'client_compressed_streaming']
+
+_SKIP_SERVER_COMPRESSION = ['server_compressed_unary',
+                            'server_compressed_streaming']
+
+_SKIP_COMPRESSION = _SKIP_CLIENT_COMPRESSION + _SKIP_SERVER_COMPRESSION
 
 _SKIP_ADVANCED = ['custom_metadata', 'status_code_and_message',
                   'unimplemented_method']
@@ -111,7 +116,7 @@ class CSharpLanguage:
     return {}
 
   def unimplemented_test_cases(self):
-    return _SKIP_COMPRESSION
+    return _SKIP_SERVER_COMPRESSION
 
   def unimplemented_test_cases_server(self):
     return _SKIP_COMPRESSION
@@ -345,7 +350,8 @@ _TEST_CASES = ['large_unary', 'empty_unary', 'ping_pong',
                'cancel_after_begin', 'cancel_after_first_response',
                'timeout_on_sleeping_server', 'custom_metadata',
                'status_code_and_message', 'unimplemented_method',
-               'large_compressed_unary', 'server_compressed_streaming']
+               'client_compressed_unary', 'server_compressed_unary',
+               'client_compressed_streaming', 'server_compressed_streaming']
 
 _AUTH_TEST_CASES = ['compute_engine_creds', 'jwt_token_creds',
                     'oauth2_auth_token', 'per_rpc_creds']
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 532f718740..396699d8fc 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -500,15 +500,23 @@ class CSharpLanguage(object):
     if self.platform == 'windows':
       # Explicitly choosing between x86 and x64 arch doesn't work yet
       _check_arch(self.args.arch, ['default'])
+      # CoreCLR use 64bit runtime by default.
+      arch_option = 'x64' if self.args.compiler == 'coreclr' else self.args.arch
       self._make_options = [_windows_toolset_option(self.args.compiler),
-                            _windows_arch_option(self.args.arch)]
+                            _windows_arch_option(arch_option)]
     else:
-      _check_compiler(self.args.compiler, ['default'])
+      _check_compiler(self.args.compiler, ['default', 'coreclr'])
+      if self.platform == 'linux' and self.args.compiler == 'coreclr':
+        self._docker_distro = 'coreclr'
+      else:
+        self._docker_distro = 'jessie'
+
       if self.platform == 'mac':
-        # On Mac, official distribution of mono is 32bit.
         # TODO(jtattermusch): EMBED_ZLIB=true currently breaks the mac build
-        self._make_options = ['EMBED_OPENSSL=true',
-                              'CFLAGS=-m32', 'LDFLAGS=-m32']
+        self._make_options = ['EMBED_OPENSSL=true']
+        if self.args.compiler != 'coreclr':
+          # On Mac, official distribution of mono is 32bit.
+          self._make_options += ['CFLAGS=-m32', 'LDFLAGS=-m32']
       else:
         self._make_options = ['EMBED_OPENSSL=true', 'EMBED_ZLIB=true']
 
@@ -517,17 +525,33 @@ class CSharpLanguage(object):
       tests_by_assembly = json.load(f)
 
     msbuild_config = _MSBUILD_CONFIG[self.config.build_config]
-    nunit_args = ['--labels=All',
-                  '--noresult',
-                  '--workers=1']
-    if self.platform == 'windows':
+    nunit_args = ['--labels=All']
+    assembly_subdir = 'bin/%s' % msbuild_config
+    assembly_extension = '.exe'
+
+    if self.args.compiler == 'coreclr':
+      if self.platform == 'linux':
+        assembly_subdir += '/netstandard1.5/debian.8-x64'
+        assembly_extension = ''
+      if self.platform == 'mac':
+        assembly_subdir += '/netstandard1.5/osx.10.11-x64'
+        assembly_extension = ''
+      else:
+        assembly_subdir += '/netstandard1.5/win7-x64'
       runtime_cmd = []
     else:
-      runtime_cmd = ['mono']
+      nunit_args += ['--noresult', '--workers=1']
+      if self.platform == 'windows':
+        runtime_cmd = []
+      else:
+        runtime_cmd = ['mono']
 
     specs = []
     for assembly in tests_by_assembly.iterkeys():
-      assembly_file = 'src/csharp/%s/bin/%s/%s.exe' % (assembly, msbuild_config, assembly)
+      assembly_file = 'src/csharp/%s/%s/%s%s' % (assembly,
+                                                 assembly_subdir,
+                                                 assembly,
+                                                 assembly_extension)
       if self.config.build_config != 'gcov' or self.platform != 'windows':
         # normally, run each test as a separate process
         for test in tests_by_assembly[assembly]:
@@ -570,12 +594,18 @@ class CSharpLanguage(object):
     return self._make_options;
 
   def build_steps(self):
-    if self.platform == 'windows':
-      return [[_windows_build_bat(self.args.compiler),
-               'src/csharp/Grpc.sln',
-               '/p:Configuration=%s' % _MSBUILD_CONFIG[self.config.build_config]]]
+    if self.args.compiler == 'coreclr':
+      if self.platform == 'windows':
+        return [['tools\\run_tests\\build_csharp_coreclr.bat']]
+      else:
+        return [['tools/run_tests/build_csharp_coreclr.sh']]
     else:
-      return [['tools/run_tests/build_csharp.sh']]
+      if self.platform == 'windows':
+        return [[_windows_build_bat(self.args.compiler),
+                 'src/csharp/Grpc.sln',
+                 '/p:Configuration=%s' % _MSBUILD_CONFIG[self.config.build_config]]]
+      else:
+        return [['tools/run_tests/build_csharp.sh']]
 
   def post_tests_steps(self):
     if self.platform == 'windows':
@@ -587,7 +617,8 @@ class CSharpLanguage(object):
     return 'Makefile'
 
   def dockerfile_dir(self):
-    return 'tools/dockerfile/test/csharp_jessie_%s' % _docker_arch_suffix(self.args.arch)
+    return 'tools/dockerfile/test/csharp_%s_%s' % (self._docker_distro,
+                                                   _docker_arch_suffix(self.args.arch))
 
   def __str__(self):
     return 'csharp'
@@ -732,7 +763,8 @@ def _check_arch_option(arch):
 
 def _windows_build_bat(compiler):
   """Returns name of build.bat for selected compiler."""
-  if compiler == 'default' or compiler == 'vs2013':
+  # For CoreCLR, fall back to the default compiler for C core
+  if compiler == 'default' or compiler == 'vs2013' or compiler == 'coreclr':
     return 'vsprojects\\build_vs2013.bat'
   elif compiler == 'vs2015':
     return 'vsprojects\\build_vs2015.bat'
@@ -745,7 +777,8 @@ def _windows_build_bat(compiler):
 
 def _windows_toolset_option(compiler):
   """Returns msbuild PlatformToolset for selected compiler."""
-  if compiler == 'default' or compiler == 'vs2013':
+  # For CoreCLR, fall back to the default compiler for C core
+  if compiler == 'default' or compiler == 'vs2013' or compiler == 'coreclr':
     return '/p:PlatformToolset=v120'
   elif compiler == 'vs2015':
     return '/p:PlatformToolset=v140'
@@ -841,7 +874,8 @@ argp.add_argument('--compiler',
                            'clang3.4', 'clang3.5', 'clang3.6', 'clang3.7',
                            'vs2010', 'vs2013', 'vs2015',
                            'python2.7', 'python3.4',
-                           'node0.12', 'node4', 'node5'],
+                           'node0.12', 'node4', 'node5',
+                           'coreclr'],
                   default='default',
                   help='Selects compiler to use. Allowed values depend on the platform and language.')
 argp.add_argument('--build_only',
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 57e3bd63f4..00018834af 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -4624,7 +4624,7 @@
     "language": "c++", 
     "name": "interop_server_main", 
     "src": [
-      "test/cpp/interop/server_main.cc"
+      "test/cpp/interop/interop_server.cc"
     ], 
     "third_party": false, 
     "type": "lib"
@@ -5400,6 +5400,7 @@
       "test/core/end2end/tests/simple_delayed_request.c", 
       "test/core/end2end/tests/simple_metadata.c", 
       "test/core/end2end/tests/simple_request.c", 
+      "test/core/end2end/tests/streaming_error_response.c", 
       "test/core/end2end/tests/trailing_metadata.c"
     ], 
     "third_party": false, 
@@ -5458,6 +5459,7 @@
       "test/core/end2end/tests/simple_delayed_request.c", 
       "test/core/end2end/tests/simple_metadata.c", 
       "test/core/end2end/tests/simple_request.c", 
+      "test/core/end2end/tests/streaming_error_response.c", 
       "test/core/end2end/tests/trailing_metadata.c"
     ], 
     "third_party": false, 
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 3ed7a6bc47..c62058ede4 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -5188,6 +5188,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_census_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -6024,6 +6046,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_compress_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -6823,6 +6867,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_fakesec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -7484,6 +7549,26 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_fd_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -8318,6 +8403,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -8932,6 +9039,22 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+pipe_test", 
+    "platforms": [
+      "linux"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -9740,6 +9863,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+trace_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -10576,6 +10721,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_loadreporting_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -11375,6 +11542,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_oauth2_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -12047,6 +12235,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_proxy_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -12740,6 +12949,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -13412,6 +13642,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair+trace_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -14105,6 +14356,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair_1byte_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -14940,6 +15212,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_ssl_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -15776,6 +16070,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_ssl_cert_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -16449,6 +16765,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_ssl_proxy_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -17190,6 +17527,26 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_uds_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -18002,6 +18359,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_census_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -18816,6 +19195,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_compress_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -19458,6 +19859,26 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_fd_nosec_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -20270,6 +20691,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -20868,6 +21311,22 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+pipe_nosec_test", 
+    "platforms": [
+      "linux"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -21654,6 +22113,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+trace_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -22468,6 +22949,28 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_loadreporting_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -23120,6 +23623,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_proxy_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -23792,6 +24316,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -24443,6 +24988,27 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair+trace_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -25177,6 +25743,29 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [
+      "msan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair_1byte_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -25900,6 +26489,26 @@
   }, 
   {
     "args": [
+      "streaming_error_response"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_uds_nosec_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "trailing_metadata"
     ], 
     "ci_platforms": [
@@ -54190,6 +54799,25 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/client_fuzzer_corpus/2c452818a10ddef09b90c89a53db14b9b56b21f3"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "client_fuzzer_one_entry", 
+    "platforms": [
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/client_fuzzer_corpus/2c6e69067c68c145dc5d3a60b86d8081fdf95d0d"
     ], 
     "ci_platforms": [
@@ -54988,6 +55616,25 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/client_fuzzer_corpus/42ead79c94eccdf8a8c3d8036be73e14fa260dd5"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "client_fuzzer_one_entry", 
+    "platforms": [
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/client_fuzzer_corpus/43202ad9b1a689d919ab9ae91c2d0223394867bf"
     ], 
     "ci_platforms": [
@@ -55330,6 +55977,25 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/client_fuzzer_corpus/4e05d6cf1c3f0c04f6ee92d09a53ee0fe35c085a"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "client_fuzzer_one_entry", 
+    "platforms": [
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/client_fuzzer_corpus/4e21c4b5c454df51c102f09ea1ba78c42133ee16"
     ], 
     "ci_platforms": [
@@ -57249,6 +57915,25 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/client_fuzzer_corpus/8f980dd25f1c77e3536131c2c620aa32e8c13180"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "client_fuzzer_one_entry", 
+    "platforms": [
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/client_fuzzer_corpus/90a9c3390752b94ca19a58cb2fe6267bc818f718"
     ], 
     "ci_platforms": [
@@ -58465,6 +59150,25 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/client_fuzzer_corpus/aef36c49d7dec0dcf8cdc224d9e9221fa2cb1db0"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "client_fuzzer_one_entry", 
+    "platforms": [
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/client_fuzzer_corpus/af8b24ffaecdfaf96c0cd7c76f31dc9e1b4d0935"
     ], 
     "ci_platforms": [
@@ -59510,6 +60214,25 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/client_fuzzer_corpus/crash-14ed70cd9ea7987cdd0c8f6e39398ee7c60ee2ff"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "client_fuzzer_one_entry", 
+    "platforms": [
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/client_fuzzer_corpus/crash-3bd02c98286bfa7be8e13c5500ddb587bba74fbb"
     ], 
     "ci_platforms": [
@@ -60175,6 +60898,25 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/client_fuzzer_corpus/dcb06a6e34cbed15515e5b3581ca666f704777bd"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "client_fuzzer_one_entry", 
+    "platforms": [
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/client_fuzzer_corpus/dccd1fd6d3394f5f68c87950ed7356a2e9ef0f6f"
     ], 
     "ci_platforms": [
@@ -60669,6 +61411,25 @@
   }, 
   {
     "args": [
+      "test/core/end2end/fuzzers/client_fuzzer_corpus/ea46b684f1e67a27c231f2d536c41da631189b9c"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "client_fuzzer_one_entry", 
+    "platforms": [
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
+  {
+    "args": [
       "test/core/end2end/fuzzers/client_fuzzer_corpus/eb969b9ab1b0d6b5d197795223ba7a091ebd8460"
     ], 
     "ci_platforms": [
diff --git a/vsprojects/vcxproj/interop_server_main/interop_server_main.vcxproj b/vsprojects/vcxproj/interop_server_main/interop_server_main.vcxproj
index 075750afc6..18971d6a34 100644
--- a/vsprojects/vcxproj/interop_server_main/interop_server_main.vcxproj
+++ b/vsprojects/vcxproj/interop_server_main/interop_server_main.vcxproj
@@ -171,7 +171,7 @@
     </ClCompile>
     <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\test.grpc.pb.h">
     </ClInclude>
-    <ClCompile Include="$(SolutionDir)\..\test\cpp\interop\server_main.cc">
+    <ClCompile Include="$(SolutionDir)\..\test\cpp\interop\interop_server.cc">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
diff --git a/vsprojects/vcxproj/interop_server_main/interop_server_main.vcxproj.filters b/vsprojects/vcxproj/interop_server_main/interop_server_main.vcxproj.filters
index 51a6b9e73c..4ee8135c04 100644
--- a/vsprojects/vcxproj/interop_server_main/interop_server_main.vcxproj.filters
+++ b/vsprojects/vcxproj/interop_server_main/interop_server_main.vcxproj.filters
@@ -10,7 +10,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\test.proto">
       <Filter>src\proto\grpc\testing</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\test\cpp\interop\server_main.cc">
+    <ClCompile Include="$(SolutionDir)\..\test\cpp\interop\interop_server.cc">
       <Filter>test\cpp\interop</Filter>
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj b/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj
index 22cd102d11..923c1d1ab4 100644
--- a/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj
+++ b/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj
@@ -225,6 +225,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\simple_request.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\streaming_error_response.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\trailing_metadata.c">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj.filters b/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj.filters
index 1bb208bba8..6533eaa057 100644
--- a/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj.filters
+++ b/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj.filters
@@ -112,6 +112,9 @@
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\simple_request.c">
       <Filter>test\core\end2end\tests</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\streaming_error_response.c">
+      <Filter>test\core\end2end\tests</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\trailing_metadata.c">
       <Filter>test\core\end2end\tests</Filter>
     </ClCompile>
diff --git a/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj b/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj
index bfd437e871..0b859e25ce 100644
--- a/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj
+++ b/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj
@@ -227,6 +227,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\simple_request.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\streaming_error_response.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\trailing_metadata.c">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj.filters b/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj.filters
index 61c065f77c..ea1c5e3c23 100644
--- a/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj.filters
+++ b/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj.filters
@@ -115,6 +115,9 @@
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\simple_request.c">
       <Filter>test\core\end2end\tests</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\streaming_error_response.c">
+      <Filter>test\core\end2end\tests</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\trailing_metadata.c">
       <Filter>test\core\end2end\tests</Filter>
     </ClCompile>