Update protos. (#1075)

21 files changed, 338 insertions, 146 deletions

diff --git a/Firestore/Protos/nanopb/google/api/http.pb.c b/Firestore/Protos/nanopb/google/api/http.pb.c
index 5219163..7a2cd21 100644
--- a/Firestore/Protos/nanopb/google/api/http.pb.c
+++ b/Firestore/Protos/nanopb/google/api/http.pb.c
@@ -15,7 +15,7 @@
  */
 
 /* Automatically generated nanopb constant definitions */
-/* Generated by nanopb-0.3.8 at Fri Feb  2 17:48:02 2018. */
+/* Generated by nanopb-0.3.8 at Thu Apr 12 07:27:15 2018. */
 
 #include "http.pb.h"
 
@@ -26,8 +26,9 @@
 
 
 
-const pb_field_t google_api_Http_fields[2] = {
+const pb_field_t google_api_Http_fields[3] = {
     PB_FIELD(  1, MESSAGE , REPEATED, CALLBACK, FIRST, google_api_Http, rules, rules, &google_api_HttpRule_fields),
+    PB_FIELD(  2, BOOL    , SINGULAR, STATIC  , OTHER, google_api_Http, fully_decode_reserved_expansion, rules, 0),
     PB_LAST_FIELD
 };
 
diff --git a/Firestore/Protos/nanopb/google/api/http.pb.h b/Firestore/Protos/nanopb/google/api/http.pb.h
index e29758c..a7bbc46 100644
--- a/Firestore/Protos/nanopb/google/api/http.pb.h
+++ b/Firestore/Protos/nanopb/google/api/http.pb.h
@@ -15,7 +15,7 @@
  */
 
 /* Automatically generated nanopb header */
-/* Generated by nanopb-0.3.8 at Fri Feb  2 17:48:02 2018. */
+/* Generated by nanopb-0.3.8 at Thu Apr 12 07:27:15 2018. */
 
 #ifndef PB_GOOGLE_API_HTTP_PB_H_INCLUDED
 #define PB_GOOGLE_API_HTTP_PB_H_INCLUDED
@@ -39,6 +39,7 @@ typedef struct _google_api_CustomHttpPattern {
 
 typedef struct _google_api_Http {
     pb_callback_t rules;
+    bool fully_decode_reserved_expansion;
 /* @@protoc_insertion_point(struct:google_api_Http) */
 } google_api_Http;
 
@@ -58,10 +59,10 @@ typedef struct _google_api_HttpRule {
 /* Default values for struct fields */
 
 /* Initializer values for message structs */
-#define google_api_Http_init_default             {{{NULL}, NULL}}
+#define google_api_Http_init_default             {{{NULL}, NULL}, 0}
 #define google_api_HttpRule_init_default         {{{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, google_api_CustomHttpPattern_init_default, {{NULL}, NULL}}
 #define google_api_CustomHttpPattern_init_default {{{NULL}, NULL}, {{NULL}, NULL}}
-#define google_api_Http_init_zero                {{{NULL}, NULL}}
+#define google_api_Http_init_zero                {{{NULL}, NULL}, 0}
 #define google_api_HttpRule_init_zero            {{{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, google_api_CustomHttpPattern_init_zero, {{NULL}, NULL}}
 #define google_api_CustomHttpPattern_init_zero   {{{NULL}, NULL}, {{NULL}, NULL}}
 
@@ -69,6 +70,7 @@ typedef struct _google_api_HttpRule {
 #define google_api_CustomHttpPattern_kind_tag    1
 #define google_api_CustomHttpPattern_path_tag    2
 #define google_api_Http_rules_tag                1
+#define google_api_Http_fully_decode_reserved_expansion_tag 2
 #define google_api_HttpRule_selector_tag         1
 #define google_api_HttpRule_get_tag              2
 #define google_api_HttpRule_put_tag              3
@@ -80,7 +82,7 @@ typedef struct _google_api_HttpRule {
 #define google_api_HttpRule_additional_bindings_tag 11
 
 /* Struct field encoding specification for nanopb */
-extern const pb_field_t google_api_Http_fields[2];
+extern const pb_field_t google_api_Http_fields[3];
 extern const pb_field_t google_api_HttpRule_fields[10];
 extern const pb_field_t google_api_CustomHttpPattern_fields[3];
 
diff --git a/Firestore/Protos/nanopb/google/firestore/v1beta1/query.pb.h b/Firestore/Protos/nanopb/google/firestore/v1beta1/query.pb.h
index faad2a2..75b8168 100644
--- a/Firestore/Protos/nanopb/google/firestore/v1beta1/query.pb.h
+++ b/Firestore/Protos/nanopb/google/firestore/v1beta1/query.pb.h
@@ -15,7 +15,7 @@
  */
 
 /* Automatically generated nanopb header */
-/* Generated by nanopb-0.3.8 at Fri Feb  2 17:48:02 2018. */
+/* Generated by nanopb-0.3.8 at Thu Apr 12 07:27:15 2018. */
 
 #ifndef PB_GOOGLE_FIRESTORE_V1BETA1_QUERY_PB_H_INCLUDED
 #define PB_GOOGLE_FIRESTORE_V1BETA1_QUERY_PB_H_INCLUDED
@@ -60,11 +60,12 @@ typedef enum _google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator {
     google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_LESS_THAN_OR_EQUAL = 2,
     google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_GREATER_THAN = 3,
     google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_GREATER_THAN_OR_EQUAL = 4,
-    google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_EQUAL = 5
+    google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_EQUAL = 5,
+    google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_ARRAY_CONTAINS = 7
 } google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator;
 #define _google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_MIN google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_OPERATOR_UNSPECIFIED
-#define _google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_MAX google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_EQUAL
-#define _google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_ARRAYSIZE ((google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator)(google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_EQUAL+1))
+#define _google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_MAX google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_ARRAY_CONTAINS
+#define _google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_ARRAYSIZE ((google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator)(google_firestore_v1beta1_StructuredQuery_FieldFilter_Operator_ARRAY_CONTAINS+1))
 
 typedef enum _google_firestore_v1beta1_StructuredQuery_UnaryFilter_Operator {
     google_firestore_v1beta1_StructuredQuery_UnaryFilter_Operator_OPERATOR_UNSPECIFIED = 0,
diff --git a/Firestore/Protos/nanopb/google/firestore/v1beta1/write.pb.c b/Firestore/Protos/nanopb/google/firestore/v1beta1/write.pb.c
index 462eca6..26542e0 100644
--- a/Firestore/Protos/nanopb/google/firestore/v1beta1/write.pb.c
+++ b/Firestore/Protos/nanopb/google/firestore/v1beta1/write.pb.c
@@ -15,7 +15,7 @@
  */
 
 /* Automatically generated nanopb constant definitions */
-/* Generated by nanopb-0.3.8 at Fri Feb  2 17:48:02 2018. */
+/* Generated by nanopb-0.3.8 at Thu Apr 12 07:27:15 2018. */
 
 #include "write.pb.h"
 
@@ -26,13 +26,12 @@
 
 
 
-const pb_field_t google_firestore_v1beta1_Write_fields[7] = {
+const pb_field_t google_firestore_v1beta1_Write_fields[6] = {
     PB_FIELD(  1, MESSAGE , SINGULAR, STATIC  , FIRST, google_firestore_v1beta1_Write, update, update, &google_firestore_v1beta1_Document_fields),
     PB_FIELD(  2, STRING  , SINGULAR, CALLBACK, OTHER, google_firestore_v1beta1_Write, delete_, update, 0),
     PB_FIELD(  3, MESSAGE , SINGULAR, STATIC  , OTHER, google_firestore_v1beta1_Write, update_mask, delete_, &google_firestore_v1beta1_DocumentMask_fields),
     PB_FIELD(  4, MESSAGE , SINGULAR, STATIC  , OTHER, google_firestore_v1beta1_Write, current_document, update_mask, &google_firestore_v1beta1_Precondition_fields),
-    PB_FIELD(  5, STRING  , SINGULAR, CALLBACK, OTHER, google_firestore_v1beta1_Write, verify, current_document, 0),
-    PB_FIELD(  6, MESSAGE , SINGULAR, STATIC  , OTHER, google_firestore_v1beta1_Write, transform, verify, &google_firestore_v1beta1_DocumentTransform_fields),
+    PB_FIELD(  6, MESSAGE , SINGULAR, STATIC  , OTHER, google_firestore_v1beta1_Write, transform, current_document, &google_firestore_v1beta1_DocumentTransform_fields),
     PB_LAST_FIELD
 };
 
@@ -42,9 +41,11 @@ const pb_field_t google_firestore_v1beta1_DocumentTransform_fields[3] = {
     PB_LAST_FIELD
 };
 
-const pb_field_t google_firestore_v1beta1_DocumentTransform_FieldTransform_fields[3] = {
+const pb_field_t google_firestore_v1beta1_DocumentTransform_FieldTransform_fields[5] = {
     PB_FIELD(  1, STRING  , SINGULAR, CALLBACK, FIRST, google_firestore_v1beta1_DocumentTransform_FieldTransform, field_path, field_path, 0),
     PB_ONEOF_FIELD(transform_type,   2, ENUM    , ONEOF, STATIC  , OTHER, google_firestore_v1beta1_DocumentTransform_FieldTransform, set_to_server_value, field_path, 0),
+    PB_ONEOF_FIELD(transform_type,   6, MESSAGE , ONEOF, STATIC  , UNION, google_firestore_v1beta1_DocumentTransform_FieldTransform, append_missing_elements, field_path, &google_firestore_v1beta1_ArrayValue_fields),
+    PB_ONEOF_FIELD(transform_type,   7, MESSAGE , ONEOF, STATIC  , UNION, google_firestore_v1beta1_DocumentTransform_FieldTransform, remove_all_from_array, field_path, &google_firestore_v1beta1_ArrayValue_fields),
     PB_LAST_FIELD
 };
 
@@ -92,7 +93,7 @@ const pb_field_t google_firestore_v1beta1_ExistenceFilter_fields[3] = {
  * numbers or field sizes that are larger than what can fit in 8 or 16 bit
  * field descriptors.
  */
-PB_STATIC_ASSERT((pb_membersize(google_firestore_v1beta1_Write, update) < 65536 && pb_membersize(google_firestore_v1beta1_Write, transform) < 65536 && pb_membersize(google_firestore_v1beta1_Write, update_mask) < 65536 && pb_membersize(google_firestore_v1beta1_Write, current_document) < 65536 && pb_membersize(google_firestore_v1beta1_WriteResult, update_time) < 65536 && pb_membersize(google_firestore_v1beta1_DocumentChange, document) < 65536 && pb_membersize(google_firestore_v1beta1_DocumentDelete, read_time) < 65536 && pb_membersize(google_firestore_v1beta1_DocumentRemove, read_time) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_google_firestore_v1beta1_Write_google_firestore_v1beta1_DocumentTransform_google_firestore_v1beta1_DocumentTransform_FieldTransform_google_firestore_v1beta1_WriteResult_google_firestore_v1beta1_DocumentChange_google_firestore_v1beta1_DocumentDelete_google_firestore_v1beta1_DocumentRemove_google_firestore_v1beta1_ExistenceFilter)
+PB_STATIC_ASSERT((pb_membersize(google_firestore_v1beta1_Write, update) < 65536 && pb_membersize(google_firestore_v1beta1_Write, transform) < 65536 && pb_membersize(google_firestore_v1beta1_Write, update_mask) < 65536 && pb_membersize(google_firestore_v1beta1_Write, current_document) < 65536 && pb_membersize(google_firestore_v1beta1_DocumentTransform_FieldTransform, transform_type.append_missing_elements) < 65536 && pb_membersize(google_firestore_v1beta1_DocumentTransform_FieldTransform, transform_type.remove_all_from_array) < 65536 && pb_membersize(google_firestore_v1beta1_WriteResult, update_time) < 65536 && pb_membersize(google_firestore_v1beta1_DocumentChange, document) < 65536 && pb_membersize(google_firestore_v1beta1_DocumentDelete, read_time) < 65536 && pb_membersize(google_firestore_v1beta1_DocumentRemove, read_time) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_google_firestore_v1beta1_Write_google_firestore_v1beta1_DocumentTransform_google_firestore_v1beta1_DocumentTransform_FieldTransform_google_firestore_v1beta1_WriteResult_google_firestore_v1beta1_DocumentChange_google_firestore_v1beta1_DocumentDelete_google_firestore_v1beta1_DocumentRemove_google_firestore_v1beta1_ExistenceFilter)
 #endif
 
 #if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)
@@ -103,7 +104,7 @@ PB_STATIC_ASSERT((pb_membersize(google_firestore_v1beta1_Write, update) < 65536
  * numbers or field sizes that are larger than what can fit in the default
  * 8 bit descriptors.
  */
-PB_STATIC_ASSERT((pb_membersize(google_firestore_v1beta1_Write, update) < 256 && pb_membersize(google_firestore_v1beta1_Write, transform) < 256 && pb_membersize(google_firestore_v1beta1_Write, update_mask) < 256 && pb_membersize(google_firestore_v1beta1_Write, current_document) < 256 && pb_membersize(google_firestore_v1beta1_WriteResult, update_time) < 256 && pb_membersize(google_firestore_v1beta1_DocumentChange, document) < 256 && pb_membersize(google_firestore_v1beta1_DocumentDelete, read_time) < 256 && pb_membersize(google_firestore_v1beta1_DocumentRemove, read_time) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_google_firestore_v1beta1_Write_google_firestore_v1beta1_DocumentTransform_google_firestore_v1beta1_DocumentTransform_FieldTransform_google_firestore_v1beta1_WriteResult_google_firestore_v1beta1_DocumentChange_google_firestore_v1beta1_DocumentDelete_google_firestore_v1beta1_DocumentRemove_google_firestore_v1beta1_ExistenceFilter)
+PB_STATIC_ASSERT((pb_membersize(google_firestore_v1beta1_Write, update) < 256 && pb_membersize(google_firestore_v1beta1_Write, transform) < 256 && pb_membersize(google_firestore_v1beta1_Write, update_mask) < 256 && pb_membersize(google_firestore_v1beta1_Write, current_document) < 256 && pb_membersize(google_firestore_v1beta1_DocumentTransform_FieldTransform, transform_type.append_missing_elements) < 256 && pb_membersize(google_firestore_v1beta1_DocumentTransform_FieldTransform, transform_type.remove_all_from_array) < 256 && pb_membersize(google_firestore_v1beta1_WriteResult, update_time) < 256 && pb_membersize(google_firestore_v1beta1_DocumentChange, document) < 256 && pb_membersize(google_firestore_v1beta1_DocumentDelete, read_time) < 256 && pb_membersize(google_firestore_v1beta1_DocumentRemove, read_time) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_google_firestore_v1beta1_Write_google_firestore_v1beta1_DocumentTransform_google_firestore_v1beta1_DocumentTransform_FieldTransform_google_firestore_v1beta1_WriteResult_google_firestore_v1beta1_DocumentChange_google_firestore_v1beta1_DocumentDelete_google_firestore_v1beta1_DocumentRemove_google_firestore_v1beta1_ExistenceFilter)
 #endif
 
 
diff --git a/Firestore/Protos/nanopb/google/firestore/v1beta1/write.pb.h b/Firestore/Protos/nanopb/google/firestore/v1beta1/write.pb.h
index a44b6d4..5a272b2 100644
--- a/Firestore/Protos/nanopb/google/firestore/v1beta1/write.pb.h
+++ b/Firestore/Protos/nanopb/google/firestore/v1beta1/write.pb.h
@@ -15,7 +15,7 @@
  */
 
 /* Automatically generated nanopb header */
-/* Generated by nanopb-0.3.8 at Fri Feb  2 17:48:02 2018. */
+/* Generated by nanopb-0.3.8 at Thu Apr 12 07:27:15 2018. */
 
 #ifndef PB_GOOGLE_FIRESTORE_V1BETA1_WRITE_PB_H_INCLUDED
 #define PB_GOOGLE_FIRESTORE_V1BETA1_WRITE_PB_H_INCLUDED
@@ -80,6 +80,8 @@ typedef struct _google_firestore_v1beta1_DocumentTransform_FieldTransform {
     pb_size_t which_transform_type;
     union {
         google_firestore_v1beta1_DocumentTransform_FieldTransform_ServerValue set_to_server_value;
+        google_firestore_v1beta1_ArrayValue append_missing_elements;
+        google_firestore_v1beta1_ArrayValue remove_all_from_array;
     } transform_type;
 /* @@protoc_insertion_point(struct:google_firestore_v1beta1_DocumentTransform_FieldTransform) */
 } google_firestore_v1beta1_DocumentTransform_FieldTransform;
@@ -95,7 +97,6 @@ typedef struct _google_firestore_v1beta1_Write {
     pb_callback_t delete_;
     google_firestore_v1beta1_DocumentMask update_mask;
     google_firestore_v1beta1_Precondition current_document;
-    pb_callback_t verify;
     google_firestore_v1beta1_DocumentTransform transform;
 /* @@protoc_insertion_point(struct:google_firestore_v1beta1_Write) */
 } google_firestore_v1beta1_Write;
@@ -109,7 +110,7 @@ typedef struct _google_firestore_v1beta1_WriteResult {
 /* Default values for struct fields */
 
 /* Initializer values for message structs */
-#define google_firestore_v1beta1_Write_init_default {google_firestore_v1beta1_Document_init_default, {{NULL}, NULL}, google_firestore_v1beta1_DocumentMask_init_default, google_firestore_v1beta1_Precondition_init_default, {{NULL}, NULL}, google_firestore_v1beta1_DocumentTransform_init_default}
+#define google_firestore_v1beta1_Write_init_default {google_firestore_v1beta1_Document_init_default, {{NULL}, NULL}, google_firestore_v1beta1_DocumentMask_init_default, google_firestore_v1beta1_Precondition_init_default, google_firestore_v1beta1_DocumentTransform_init_default}
 #define google_firestore_v1beta1_DocumentTransform_init_default {{{NULL}, NULL}, {{NULL}, NULL}}
 #define google_firestore_v1beta1_DocumentTransform_FieldTransform_init_default {{{NULL}, NULL}, 0, {(google_firestore_v1beta1_DocumentTransform_FieldTransform_ServerValue)0}}
 #define google_firestore_v1beta1_WriteResult_init_default {google_protobuf_Timestamp_init_default, {{NULL}, NULL}}
@@ -117,7 +118,7 @@ typedef struct _google_firestore_v1beta1_WriteResult {
 #define google_firestore_v1beta1_DocumentDelete_init_default {{{NULL}, NULL}, google_protobuf_Timestamp_init_default, {{NULL}, NULL}}
 #define google_firestore_v1beta1_DocumentRemove_init_default {{{NULL}, NULL}, {{NULL}, NULL}, google_protobuf_Timestamp_init_default}
 #define google_firestore_v1beta1_ExistenceFilter_init_default {0, 0}
-#define google_firestore_v1beta1_Write_init_zero {google_firestore_v1beta1_Document_init_zero, {{NULL}, NULL}, google_firestore_v1beta1_DocumentMask_init_zero, google_firestore_v1beta1_Precondition_init_zero, {{NULL}, NULL}, google_firestore_v1beta1_DocumentTransform_init_zero}
+#define google_firestore_v1beta1_Write_init_zero {google_firestore_v1beta1_Document_init_zero, {{NULL}, NULL}, google_firestore_v1beta1_DocumentMask_init_zero, google_firestore_v1beta1_Precondition_init_zero, google_firestore_v1beta1_DocumentTransform_init_zero}
 #define google_firestore_v1beta1_DocumentTransform_init_zero {{{NULL}, NULL}, {{NULL}, NULL}}
 #define google_firestore_v1beta1_DocumentTransform_FieldTransform_init_zero {{{NULL}, NULL}, 0, {(google_firestore_v1beta1_DocumentTransform_FieldTransform_ServerValue)0}}
 #define google_firestore_v1beta1_WriteResult_init_zero {google_protobuf_Timestamp_init_zero, {{NULL}, NULL}}
@@ -139,12 +140,13 @@ typedef struct _google_firestore_v1beta1_WriteResult {
 #define google_firestore_v1beta1_DocumentRemove_removed_target_ids_tag 2
 #define google_firestore_v1beta1_DocumentRemove_read_time_tag 4
 #define google_firestore_v1beta1_DocumentTransform_FieldTransform_set_to_server_value_tag 2
+#define google_firestore_v1beta1_DocumentTransform_FieldTransform_append_missing_elements_tag 6
+#define google_firestore_v1beta1_DocumentTransform_FieldTransform_remove_all_from_array_tag 7
 #define google_firestore_v1beta1_DocumentTransform_FieldTransform_field_path_tag 1
 #define google_firestore_v1beta1_ExistenceFilter_target_id_tag 1
 #define google_firestore_v1beta1_ExistenceFilter_count_tag 2
 #define google_firestore_v1beta1_Write_update_tag 1
 #define google_firestore_v1beta1_Write_delete_tag 2
-#define google_firestore_v1beta1_Write_verify_tag 5
 #define google_firestore_v1beta1_Write_transform_tag 6
 #define google_firestore_v1beta1_Write_update_mask_tag 3
 #define google_firestore_v1beta1_Write_current_document_tag 4
@@ -152,9 +154,9 @@ typedef struct _google_firestore_v1beta1_WriteResult {
 #define google_firestore_v1beta1_WriteResult_transform_results_tag 2
 
 /* Struct field encoding specification for nanopb */
-extern const pb_field_t google_firestore_v1beta1_Write_fields[7];
+extern const pb_field_t google_firestore_v1beta1_Write_fields[6];
 extern const pb_field_t google_firestore_v1beta1_DocumentTransform_fields[3];
-extern const pb_field_t google_firestore_v1beta1_DocumentTransform_FieldTransform_fields[3];
+extern const pb_field_t google_firestore_v1beta1_DocumentTransform_FieldTransform_fields[5];
 extern const pb_field_t google_firestore_v1beta1_WriteResult_fields[3];
 extern const pb_field_t google_firestore_v1beta1_DocumentChange_fields[4];
 extern const pb_field_t google_firestore_v1beta1_DocumentDelete_fields[4];
diff --git a/Firestore/Protos/objc/google/api/HTTP.pbobjc.h b/Firestore/Protos/objc/google/api/HTTP.pbobjc.h
index 9cc00dc..c9e5bb5 100644
--- a/Firestore/Protos/objc/google/api/HTTP.pbobjc.h
+++ b/Firestore/Protos/objc/google/api/HTTP.pbobjc.h
@@ -67,10 +67,11 @@ NS_ASSUME_NONNULL_BEGIN
 
 typedef GPB_ENUM(GAPIHttp_FieldNumber) {
   GAPIHttp_FieldNumber_RulesArray = 1,
+  GAPIHttp_FieldNumber_FullyDecodeReservedExpansion = 2,
 };
 
 /**
- * Defines the HTTP configuration for a service. It contains a list of
+ * Defines the HTTP configuration for an API service. It contains a list of
  * [HttpRule][google.api.HttpRule], each specifying the mapping of an RPC method
  * to one or more HTTP REST API methods.
  **/
@@ -85,6 +86,16 @@ typedef GPB_ENUM(GAPIHttp_FieldNumber) {
 /** The number of items in @c rulesArray without causing the array to be created. */
 @property(nonatomic, readonly) NSUInteger rulesArray_Count;
 
+/**
+ * When set to true, URL path parmeters will be fully URI-decoded except in
+ * cases of single segment matches in reserved expansion, where "%2F" will be
+ * left encoded.
+ *
+ * The default behavior is to not decode RFC 6570 reserved characters in multi
+ * segment matches.
+ **/
+@property(nonatomic, readwrite) BOOL fullyDecodeReservedExpansion;
+
 @end
 
 #pragma mark - GAPIHttpRule
@@ -113,11 +124,11 @@ typedef GPB_ENUM(GAPIHttpRule_Pattern_OneOfCase) {
 
 /**
  * `HttpRule` defines the mapping of an RPC method to one or more HTTP
- * REST APIs.  The mapping determines what portions of the request
- * message are populated from the path, query parameters, or body of
- * the HTTP request.  The mapping is typically specified as an
- * `google.api.http` annotation, see "google/api/annotations.proto"
- * for details.
+ * REST API methods. The mapping specifies how different portions of the RPC
+ * request message are mapped to URL path, URL query parameters, and
+ * HTTP request body. The mapping is typically specified as an
+ * `google.api.http` annotation on the RPC method,
+ * see "google/api/annotations.proto" for details.
  *
  * The mapping consists of a field specifying the path template and
  * method kind.  The path template can refer to fields in the request
@@ -165,6 +176,11 @@ typedef GPB_ENUM(GAPIHttpRule_Pattern_OneOfCase) {
  * parameters. Assume the following definition of the request message:
  *
  *
+ *     service Messaging {
+ *       rpc GetMessage(GetMessageRequest) returns (Message) {
+ *         option (google.api.http).get = "/v1/messages/{message_id}";
+ *       }
+ *     }
  *     message GetMessageRequest {
  *       message SubMessage {
  *         string subfield = 1;
@@ -277,7 +293,7 @@ typedef GPB_ENUM(GAPIHttpRule_Pattern_OneOfCase) {
  * to the request message are as follows:
  *
  * 1. The `body` field specifies either `*` or a field path, or is
- *    omitted. If omitted, it assumes there is no HTTP body.
+ *    omitted. If omitted, it indicates there is no HTTP request body.
  * 2. Leaf fields (recursive expansion of nested messages in the
  *    request) can be classified into three types:
  *     (a) Matched in the URL template.
@@ -296,28 +312,34 @@ typedef GPB_ENUM(GAPIHttpRule_Pattern_OneOfCase) {
  *     FieldPath = IDENT { "." IDENT } ;
  *     Verb     = ":" LITERAL ;
  *
- * The syntax `*` matches a single path segment. It follows the semantics of
- * [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String
- * Expansion.
+ * The syntax `*` matches a single path segment. The syntax `**` matches zero
+ * or more path segments, which must be the last part of the path except the
+ * `Verb`. The syntax `LITERAL` matches literal text in the path.
  *
- * The syntax `**` matches zero or more path segments. It follows the semantics
- * of [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.3 Reserved
- * Expansion. NOTE: it must be the last segment in the path except the Verb.
- *
- * The syntax `LITERAL` matches literal text in the URL path.
- *
- * The syntax `Variable` matches the entire path as specified by its template;
- * this nested template must not contain further variables. If a variable
+ * The syntax `Variable` matches part of the URL path as specified by its
+ * template. A variable template must not contain other variables. If a variable
  * matches a single path segment, its template may be omitted, e.g. `{var}`
  * is equivalent to `{var=*}`.
  *
+ * If a variable contains exactly one path segment, such as `"{var}"` or
+ * `"{var=*}"`, when such a variable is expanded into a URL path, all characters
+ * except `[-_.~0-9a-zA-Z]` are percent-encoded. Such variables show up in the
+ * Discovery Document as `{var}`.
+ *
+ * If a variable contains one or more path segments, such as `"{var=foo/\*}"`
+ * or `"{var=**}"`, when such a variable is expanded into a URL path, all
+ * characters except `[-_.~/0-9a-zA-Z]` are percent-encoded. Such variables
+ * show up in the Discovery Document as `{+var}`.
+ *
+ * NOTE: While the single segment variable matches the semantics of
+ * [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2
+ * Simple String Expansion, the multi segment variable **does not** match
+ * RFC 6570 Reserved Expansion. The reason is that the Reserved Expansion
+ * does not expand special characters like `?` and `#`, which would lead
+ * to invalid URLs.
+ *
  * NOTE: the field paths in variables and in the `body` must not refer to
  * repeated fields or map fields.
- *
- * Use CustomHttpPattern to specify any HTTP method that is not included in the
- * `pattern` field, such as HEAD, or "*" to leave the HTTP method unspecified for
- * a given URL path rule. The wild-card rule is useful for services that provide
- * content to Web (HTML) clients.
  **/
 @interface GAPIHttpRule : GPBMessage
 
@@ -350,7 +372,12 @@ typedef GPB_ENUM(GAPIHttpRule_Pattern_OneOfCase) {
 /** Used for updating a resource. */
 @property(nonatomic, readwrite, copy, null_resettable) NSString *patch;
 
-/** Custom pattern is used for defining custom verbs. */
+/**
+ * The custom pattern is used for specifying an HTTP method that is not
+ * included in the `pattern` field, such as HEAD, or "*" to leave the
+ * HTTP method unspecified for this rule. The wild-card rule is useful
+ * for services that provide content to Web (HTML) clients.
+ **/
 @property(nonatomic, readwrite, strong, null_resettable) GAPICustomHttpPattern *custom;
 
 /**
diff --git a/Firestore/Protos/objc/google/api/HTTP.pbobjc.m b/Firestore/Protos/objc/google/api/HTTP.pbobjc.m
index 5adf41c..67d8732 100644
--- a/Firestore/Protos/objc/google/api/HTTP.pbobjc.m
+++ b/Firestore/Protos/objc/google/api/HTTP.pbobjc.m
@@ -65,6 +65,7 @@ static GPBFileDescriptor *GAPIHTTPRoot_FileDescriptor(void) {
 @implementation GAPIHttp
 
 @dynamic rulesArray, rulesArray_Count;
+@dynamic fullyDecodeReservedExpansion;
 
 typedef struct GAPIHttp__storage_ {
   uint32_t _has_storage_[1];
@@ -86,6 +87,15 @@ typedef struct GAPIHttp__storage_ {
         .flags = GPBFieldRepeated,
         .dataType = GPBDataTypeMessage,
       },
+      {
+        .name = "fullyDecodeReservedExpansion",
+        .dataTypeSpecific.className = NULL,
+        .number = GAPIHttp_FieldNumber_FullyDecodeReservedExpansion,
+        .hasIndex = 0,
+        .offset = 1,  // Stored in _has_storage_ to save space.
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeBool,
+      },
     };
     GPBDescriptor *localDescriptor =
         [GPBDescriptor allocDescriptorForClass:[GAPIHttp class]
diff --git a/Firestore/Protos/objc/google/firestore/v1beta1/Document.pbobjc.h b/Firestore/Protos/objc/google/firestore/v1beta1/Document.pbobjc.h
index 3c5bfb1..b960b00 100644
--- a/Firestore/Protos/objc/google/firestore/v1beta1/Document.pbobjc.h
+++ b/Firestore/Protos/objc/google/firestore/v1beta1/Document.pbobjc.h
@@ -95,7 +95,7 @@ typedef GPB_ENUM(GCFSDocument_FieldNumber) {
  * The map keys represent field names.
  *
  * A simple field name contains only characters `a` to `z`, `A` to `Z`,
- * `0` to `9`, or `_`, and must not start with `0` to `9` or `_`. For example,
+ * `0` to `9`, or `_`, and must not start with `0` to `9`. For example,
  * `foo_bar_17`.
  *
  * Field names matching the regular expression `__.*__` are reserved. Reserved
@@ -133,7 +133,7 @@ typedef GPB_ENUM(GCFSDocument_FieldNumber) {
 /**
  * Output only. The time at which the document was last changed.
  *
- * This value is initally set to the `create_time` then increases
+ * This value is initially set to the `create_time` then increases
  * monotonically with each change to the document. It can also be
  * compared to values from other documents and the `read_time` of a query.
  **/
diff --git a/Firestore/Protos/objc/google/firestore/v1beta1/Firestore.pbobjc.h b/Firestore/Protos/objc/google/firestore/v1beta1/Firestore.pbobjc.h
index 0acd8c0..11f55a9 100644
--- a/Firestore/Protos/objc/google/firestore/v1beta1/Firestore.pbobjc.h
+++ b/Firestore/Protos/objc/google/firestore/v1beta1/Firestore.pbobjc.h
@@ -642,10 +642,7 @@ typedef GPB_ENUM(GCFSCommitRequest_FieldNumber) {
 /** The number of items in @c writesArray without causing the array to be created. */
 @property(nonatomic, readonly) NSUInteger writesArray_Count;
 
-/**
- * If non-empty, applies all writes in this transaction, and commits it.
- * Otherwise, applies the writes as if they were in their own transaction.
- **/
+/** If set, applies all writes in this transaction, and commits it. */
 @property(nonatomic, readwrite, copy, null_resettable) NSData *transaction;
 
 @end
diff --git a/Firestore/Protos/objc/google/firestore/v1beta1/Query.pbobjc.h b/Firestore/Protos/objc/google/firestore/v1beta1/Query.pbobjc.h
index c2d80e7..7e32934 100644
--- a/Firestore/Protos/objc/google/firestore/v1beta1/Query.pbobjc.h
+++ b/Firestore/Protos/objc/google/firestore/v1beta1/Query.pbobjc.h
@@ -140,6 +140,9 @@ typedef GPB_ENUM(GCFSStructuredQuery_FieldFilter_Operator) {
 
   /** Equal. */
   GCFSStructuredQuery_FieldFilter_Operator_Equal = 5,
+
+  /** Contains. Requires that the field is an array. */
+  GCFSStructuredQuery_FieldFilter_Operator_ArrayContains = 7,
 };
 
 GPBEnumDescriptor *GCFSStructuredQuery_FieldFilter_Operator_EnumDescriptor(void);
diff --git a/Firestore/Protos/objc/google/firestore/v1beta1/Query.pbobjc.m b/Firestore/Protos/objc/google/firestore/v1beta1/Query.pbobjc.m
index 804a5d0..124930a 100644
--- a/Firestore/Protos/objc/google/firestore/v1beta1/Query.pbobjc.m
+++ b/Firestore/Protos/objc/google/firestore/v1beta1/Query.pbobjc.m
@@ -542,7 +542,7 @@ GPBEnumDescriptor *GCFSStructuredQuery_FieldFilter_Operator_EnumDescriptor(void)
     static const char *valueNames =
         "OperatorUnspecified\000LessThan\000LessThanOrE"
         "qual\000GreaterThan\000GreaterThanOrEqual\000Equa"
-        "l\000";
+        "l\000ArrayContains\000";
     static const int32_t values[] = {
         GCFSStructuredQuery_FieldFilter_Operator_OperatorUnspecified,
         GCFSStructuredQuery_FieldFilter_Operator_LessThan,
@@ -550,6 +550,7 @@ GPBEnumDescriptor *GCFSStructuredQuery_FieldFilter_Operator_EnumDescriptor(void)
         GCFSStructuredQuery_FieldFilter_Operator_GreaterThan,
         GCFSStructuredQuery_FieldFilter_Operator_GreaterThanOrEqual,
         GCFSStructuredQuery_FieldFilter_Operator_Equal,
+        GCFSStructuredQuery_FieldFilter_Operator_ArrayContains,
     };
     GPBEnumDescriptor *worker =
         [GPBEnumDescriptor allocDescriptorForName:GPBNSStringifySymbol(GCFSStructuredQuery_FieldFilter_Operator)
@@ -572,6 +573,7 @@ BOOL GCFSStructuredQuery_FieldFilter_Operator_IsValidValue(int32_t value__) {
     case GCFSStructuredQuery_FieldFilter_Operator_GreaterThan:
     case GCFSStructuredQuery_FieldFilter_Operator_GreaterThanOrEqual:
     case GCFSStructuredQuery_FieldFilter_Operator_Equal:
+    case GCFSStructuredQuery_FieldFilter_Operator_ArrayContains:
       return YES;
     default:
       return NO;
diff --git a/Firestore/Protos/objc/google/firestore/v1beta1/Write.pbobjc.h b/Firestore/Protos/objc/google/firestore/v1beta1/Write.pbobjc.h
index c3c4498..539bfa3 100644
--- a/Firestore/Protos/objc/google/firestore/v1beta1/Write.pbobjc.h
+++ b/Firestore/Protos/objc/google/firestore/v1beta1/Write.pbobjc.h
@@ -43,6 +43,7 @@
 
 CF_EXTERN_C_BEGIN
 
+@class GCFSArrayValue;
 @class GCFSDocument;
 @class GCFSDocumentMask;
 @class GCFSDocumentTransform;
@@ -66,7 +67,10 @@ typedef GPB_ENUM(GCFSDocumentTransform_FieldTransform_ServerValue) {
   /** Unspecified. This value must not be used. */
   GCFSDocumentTransform_FieldTransform_ServerValue_ServerValueUnspecified = 0,
 
-  /** The time at which the server processed the request. */
+  /**
+   * The time at which the server processed the request, with millisecond
+   * precision.
+   **/
   GCFSDocumentTransform_FieldTransform_ServerValue_RequestTime = 1,
 };
 
@@ -100,7 +104,6 @@ typedef GPB_ENUM(GCFSWrite_FieldNumber) {
   GCFSWrite_FieldNumber_Delete_p = 2,
   GCFSWrite_FieldNumber_UpdateMask = 3,
   GCFSWrite_FieldNumber_CurrentDocument = 4,
-  GCFSWrite_FieldNumber_Verify = 5,
   GCFSWrite_FieldNumber_Transform = 6,
 };
 
@@ -108,7 +111,6 @@ typedef GPB_ENUM(GCFSWrite_Operation_OneOfCase) {
   GCFSWrite_Operation_OneOfCase_GPBUnsetOneOfCase = 0,
   GCFSWrite_Operation_OneOfCase_Update = 1,
   GCFSWrite_Operation_OneOfCase_Delete_p = 2,
-  GCFSWrite_Operation_OneOfCase_Verify = 5,
   GCFSWrite_Operation_OneOfCase_Transform = 6,
 };
 
@@ -130,13 +132,6 @@ typedef GPB_ENUM(GCFSWrite_Operation_OneOfCase) {
 @property(nonatomic, readwrite, copy, null_resettable) NSString *delete_p;
 
 /**
- * The name of a document on which to verify the `current_document`
- * precondition.
- * This only requires read access to the document.
- **/
-@property(nonatomic, readwrite, copy, null_resettable) NSString *verify;
-
-/**
  * Applies a tranformation to a document.
  * At most one `transform` per document is allowed in a given request.
  * An `update` cannot follow a `transform` on the same document in a given
@@ -148,9 +143,10 @@ typedef GPB_ENUM(GCFSWrite_Operation_OneOfCase) {
  * The fields to update in this write.
  *
  * This field can be set only when the operation is `update`.
- * None of the field paths in the mask may contain a reserved name.
- * If the document exists on the server and has fields not referenced in the
- * mask, they are left unchanged.
+ * If the mask is not set for an `update` and the document exists, any
+ * existing data will be overwritten.
+ * If the mask is set and the document on the server has fields not covered by
+ * the mask, they are left unchanged.
  * Fields referenced in the mask, but not present in the input document, are
  * deleted from the document on the server.
  * The field paths in this mask must not contain a reserved field name.
@@ -193,6 +189,7 @@ typedef GPB_ENUM(GCFSDocumentTransform_FieldNumber) {
 /**
  * The list of transformations to apply to the fields of the document, in
  * order.
+ * This must not be empty.
  **/
 @property(nonatomic, readwrite, strong, null_resettable) NSMutableArray<GCFSDocumentTransform_FieldTransform*> *fieldTransformsArray;
 /** The number of items in @c fieldTransformsArray without causing the array to be created. */
@@ -205,11 +202,15 @@ typedef GPB_ENUM(GCFSDocumentTransform_FieldNumber) {
 typedef GPB_ENUM(GCFSDocumentTransform_FieldTransform_FieldNumber) {
   GCFSDocumentTransform_FieldTransform_FieldNumber_FieldPath = 1,
   GCFSDocumentTransform_FieldTransform_FieldNumber_SetToServerValue = 2,
+  GCFSDocumentTransform_FieldTransform_FieldNumber_AppendMissingElements = 6,
+  GCFSDocumentTransform_FieldTransform_FieldNumber_RemoveAllFromArray_p = 7,
 };
 
 typedef GPB_ENUM(GCFSDocumentTransform_FieldTransform_TransformType_OneOfCase) {
   GCFSDocumentTransform_FieldTransform_TransformType_OneOfCase_GPBUnsetOneOfCase = 0,
   GCFSDocumentTransform_FieldTransform_TransformType_OneOfCase_SetToServerValue = 2,
+  GCFSDocumentTransform_FieldTransform_TransformType_OneOfCase_AppendMissingElements = 6,
+  GCFSDocumentTransform_FieldTransform_TransformType_OneOfCase_RemoveAllFromArray_p = 7,
 };
 
 /**
@@ -229,6 +230,36 @@ typedef GPB_ENUM(GCFSDocumentTransform_FieldTransform_TransformType_OneOfCase) {
 /** Sets the field to the given server value. */
 @property(nonatomic, readwrite) GCFSDocumentTransform_FieldTransform_ServerValue setToServerValue;
 
+/**
+ * Append the given elements in order if they are not already present in
+ * the current field value.
+ * If the field is not an array, or if the field does not yet exist, it is
+ * first set to the empty array.
+ *
+ * Equivalent numbers of different types (e.g. 3L and 3.0) are
+ * considered equal when checking if a value is missing.
+ * NaN is equal to NaN, and Null is equal to Null.
+ * If the input contains multiple equivalent values, only the first will
+ * be considered.
+ *
+ * The corresponding transform_result will be the null value.
+ **/
+@property(nonatomic, readwrite, strong, null_resettable) GCFSArrayValue *appendMissingElements;
+
+/**
+ * Remove all of the given elements from the array in the field.
+ * If the field is not an array, or if the field does not yet exist, it is
+ * set to the empty array.
+ *
+ * Equivalent numbers of the different types (e.g. 3L and 3.0) are
+ * considered equal when deciding whether an element should be removed.
+ * NaN is equal to NaN, and Null is equal to Null.
+ * This will remove all equivalent values if there are duplicates.
+ *
+ * The corresponding transform_result will be the null value.
+ **/
+@property(nonatomic, readwrite, strong, null_resettable) GCFSArrayValue *removeAllFromArray_p;
+
 @end
 
 /**
diff --git a/Firestore/Protos/objc/google/firestore/v1beta1/Write.pbobjc.m b/Firestore/Protos/objc/google/firestore/v1beta1/Write.pbobjc.m
index e6fd0f4..591e634 100644
--- a/Firestore/Protos/objc/google/firestore/v1beta1/Write.pbobjc.m
+++ b/Firestore/Protos/objc/google/firestore/v1beta1/Write.pbobjc.m
@@ -74,7 +74,6 @@ static GPBFileDescriptor *GCFSWriteRoot_FileDescriptor(void) {
 @dynamic operationOneOfCase;
 @dynamic update;
 @dynamic delete_p;
-@dynamic verify;
 @dynamic transform;
 @dynamic hasUpdateMask, updateMask;
 @dynamic hasCurrentDocument, currentDocument;
@@ -85,7 +84,6 @@ typedef struct GCFSWrite__storage_ {
   NSString *delete_p;
   GCFSDocumentMask *updateMask;
   GCFSPrecondition *currentDocument;
-  NSString *verify;
   GCFSDocumentTransform *transform;
 } GCFSWrite__storage_;
 
@@ -132,15 +130,6 @@ typedef struct GCFSWrite__storage_ {
         .dataType = GPBDataTypeMessage,
       },
       {
-        .name = "verify",
-        .dataTypeSpecific.className = NULL,
-        .number = GCFSWrite_FieldNumber_Verify,
-        .hasIndex = -1,
-        .offset = (uint32_t)offsetof(GCFSWrite__storage_, verify),
-        .flags = GPBFieldOptional,
-        .dataType = GPBDataTypeString,
-      },
-      {
         .name = "transform",
         .dataTypeSpecific.className = GPBStringifySymbol(GCFSDocumentTransform),
         .number = GCFSWrite_FieldNumber_Transform,
@@ -238,11 +227,15 @@ typedef struct GCFSDocumentTransform__storage_ {
 @dynamic transformTypeOneOfCase;
 @dynamic fieldPath;
 @dynamic setToServerValue;
+@dynamic appendMissingElements;
+@dynamic removeAllFromArray_p;
 
 typedef struct GCFSDocumentTransform_FieldTransform__storage_ {
   uint32_t _has_storage_[2];
   GCFSDocumentTransform_FieldTransform_ServerValue setToServerValue;
   NSString *fieldPath;
+  GCFSArrayValue *appendMissingElements;
+  GCFSArrayValue *removeAllFromArray_p;
 } GCFSDocumentTransform_FieldTransform__storage_;
 
 // This method is threadsafe because it is initially called
@@ -269,6 +262,24 @@ typedef struct GCFSDocumentTransform_FieldTransform__storage_ {
         .flags = (GPBFieldFlags)(GPBFieldOptional | GPBFieldHasEnumDescriptor),
         .dataType = GPBDataTypeEnum,
       },
+      {
+        .name = "appendMissingElements",
+        .dataTypeSpecific.className = GPBStringifySymbol(GCFSArrayValue),
+        .number = GCFSDocumentTransform_FieldTransform_FieldNumber_AppendMissingElements,
+        .hasIndex = -1,
+        .offset = (uint32_t)offsetof(GCFSDocumentTransform_FieldTransform__storage_, appendMissingElements),
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeMessage,
+      },
+      {
+        .name = "removeAllFromArray_p",
+        .dataTypeSpecific.className = GPBStringifySymbol(GCFSArrayValue),
+        .number = GCFSDocumentTransform_FieldTransform_FieldNumber_RemoveAllFromArray_p,
+        .hasIndex = -1,
+        .offset = (uint32_t)offsetof(GCFSDocumentTransform_FieldTransform__storage_, removeAllFromArray_p),
+        .flags = GPBFieldOptional,
+        .dataType = GPBDataTypeMessage,
+      },
     };
     GPBDescriptor *localDescriptor =
         [GPBDescriptor allocDescriptorForClass:[GCFSDocumentTransform_FieldTransform class]
diff --git a/Firestore/Protos/protos/google/api/http.proto b/Firestore/Protos/protos/google/api/http.proto
index 5f8538a..78d515d 100644
--- a/Firestore/Protos/protos/google/api/http.proto
+++ b/Firestore/Protos/protos/google/api/http.proto
@@ -1,4 +1,4 @@
-// Copyright 2016 Google Inc.
+// Copyright 2018 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -24,7 +24,7 @@ option java_package = "com.google.api";
 option objc_class_prefix = "GAPI";
 
 
-// Defines the HTTP configuration for a service. It contains a list of
+// Defines the HTTP configuration for an API service. It contains a list of
 // [HttpRule][google.api.HttpRule], each specifying the mapping of an RPC method
 // to one or more HTTP REST API methods.
 message Http {
@@ -32,14 +32,22 @@ message Http {
   //
   // **NOTE:** All service configuration rules follow "last one wins" order.
   repeated HttpRule rules = 1;
+
+  // When set to true, URL path parmeters will be fully URI-decoded except in
+  // cases of single segment matches in reserved expansion, where "%2F" will be
+  // left encoded.
+  //
+  // The default behavior is to not decode RFC 6570 reserved characters in multi
+  // segment matches.
+  bool fully_decode_reserved_expansion = 2;
 }
 
 // `HttpRule` defines the mapping of an RPC method to one or more HTTP
-// REST APIs.  The mapping determines what portions of the request
-// message are populated from the path, query parameters, or body of
-// the HTTP request.  The mapping is typically specified as an
-// `google.api.http` annotation, see "google/api/annotations.proto"
-// for details.
+// REST API methods. The mapping specifies how different portions of the RPC
+// request message are mapped to URL path, URL query parameters, and
+// HTTP request body. The mapping is typically specified as an
+// `google.api.http` annotation on the RPC method,
+// see "google/api/annotations.proto" for details.
 //
 // The mapping consists of a field specifying the path template and
 // method kind.  The path template can refer to fields in the request
@@ -87,6 +95,11 @@ message Http {
 // parameters. Assume the following definition of the request message:
 //
 //
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http).get = "/v1/messages/{message_id}";
+//       }
+//     }
 //     message GetMessageRequest {
 //       message SubMessage {
 //         string subfield = 1;
@@ -199,7 +212,7 @@ message Http {
 // to the request message are as follows:
 //
 // 1. The `body` field specifies either `*` or a field path, or is
-//    omitted. If omitted, it assumes there is no HTTP body.
+//    omitted. If omitted, it indicates there is no HTTP request body.
 // 2. Leaf fields (recursive expansion of nested messages in the
 //    request) can be classified into three types:
 //     (a) Matched in the URL template.
@@ -218,28 +231,34 @@ message Http {
 //     FieldPath = IDENT { "." IDENT } ;
 //     Verb     = ":" LITERAL ;
 //
-// The syntax `*` matches a single path segment. It follows the semantics of
-// [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String
-// Expansion.
+// The syntax `*` matches a single path segment. The syntax `**` matches zero
+// or more path segments, which must be the last part of the path except the
+// `Verb`. The syntax `LITERAL` matches literal text in the path.
 //
-// The syntax `**` matches zero or more path segments. It follows the semantics
-// of [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.3 Reserved
-// Expansion. NOTE: it must be the last segment in the path except the Verb.
-//
-// The syntax `LITERAL` matches literal text in the URL path.
-//
-// The syntax `Variable` matches the entire path as specified by its template;
-// this nested template must not contain further variables. If a variable
+// The syntax `Variable` matches part of the URL path as specified by its
+// template. A variable template must not contain other variables. If a variable
 // matches a single path segment, its template may be omitted, e.g. `{var}`
 // is equivalent to `{var=*}`.
 //
+// If a variable contains exactly one path segment, such as `"{var}"` or
+// `"{var=*}"`, when such a variable is expanded into a URL path, all characters
+// except `[-_.~0-9a-zA-Z]` are percent-encoded. Such variables show up in the
+// Discovery Document as `{var}`.
+//
+// If a variable contains one or more path segments, such as `"{var=foo/*}"`
+// or `"{var=**}"`, when such a variable is expanded into a URL path, all
+// characters except `[-_.~/0-9a-zA-Z]` are percent-encoded. Such variables
+// show up in the Discovery Document as `{+var}`.
+//
+// NOTE: While the single segment variable matches the semantics of
+// [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2
+// Simple String Expansion, the multi segment variable **does not** match
+// RFC 6570 Reserved Expansion. The reason is that the Reserved Expansion
+// does not expand special characters like `?` and `#`, which would lead
+// to invalid URLs.
+//
 // NOTE: the field paths in variables and in the `body` must not refer to
 // repeated fields or map fields.
-//
-// Use CustomHttpPattern to specify any HTTP method that is not included in the
-// `pattern` field, such as HEAD, or "*" to leave the HTTP method unspecified for
-// a given URL path rule. The wild-card rule is useful for services that provide
-// content to Web (HTML) clients.
 message HttpRule {
   // Selects methods to which this rule applies.
   //
@@ -265,7 +284,10 @@ message HttpRule {
     // Used for updating a resource.
     string patch = 6;
 
-    // Custom pattern is used for defining custom verbs.
+    // The custom pattern is used for specifying an HTTP method that is not
+    // included in the `pattern` field, such as HEAD, or "*" to leave the
+    // HTTP method unspecified for this rule. The wild-card rule is useful
+    // for services that provide content to Web (HTML) clients.
     CustomHttpPattern custom = 8;
   }
 
diff --git a/Firestore/Protos/protos/google/firestore/v1beta1/common.proto b/Firestore/Protos/protos/google/firestore/v1beta1/common.proto
index e624323..5ceb7b9 100644
--- a/Firestore/Protos/protos/google/firestore/v1beta1/common.proto
+++ b/Firestore/Protos/protos/google/firestore/v1beta1/common.proto
@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc.
+// Copyright 2018 Google Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ option java_multiple_files = true;
 option java_outer_classname = "CommonProto";
 option java_package = "com.google.firestore.v1beta1";
 option objc_class_prefix = "GCFS";
+option php_namespace = "Google\\Cloud\\Firestore\\V1beta1";
 
 
 // A set of field paths on a document.
diff --git a/Firestore/Protos/protos/google/firestore/v1beta1/document.proto b/Firestore/Protos/protos/google/firestore/v1beta1/document.proto
index cf6001d..cd84c7a 100644
--- a/Firestore/Protos/protos/google/firestore/v1beta1/document.proto
+++ b/Firestore/Protos/protos/google/firestore/v1beta1/document.proto
@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc.
+// Copyright 2018 Google Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@ option java_multiple_files = true;
 option java_outer_classname = "DocumentProto";
 option java_package = "com.google.firestore.v1beta1";
 option objc_class_prefix = "GCFS";
+option php_namespace = "Google\\Cloud\\Firestore\\V1beta1";
 
 
 // A Firestore document.
@@ -42,7 +43,7 @@ message Document {
   // The map keys represent field names.
   //
   // A simple field name contains only characters `a` to `z`, `A` to `Z`,
-  // `0` to `9`, or `_`, and must not start with `0` to `9` or `_`. For example,
+  // `0` to `9`, or `_`, and must not start with `0` to `9`. For example,
   // `foo_bar_17`.
   //
   // Field names matching the regular expression `__.*__` are reserved. Reserved
@@ -72,7 +73,7 @@ message Document {
 
   // Output only. The time at which the document was last changed.
   //
-  // This value is initally set to the `create_time` then increases
+  // This value is initially set to the `create_time` then increases
   // monotonically with each change to the document. It can also be
   // compared to values from other documents and the `read_time` of a query.
   google.protobuf.Timestamp update_time = 4;
diff --git a/Firestore/Protos/protos/google/firestore/v1beta1/firestore.proto b/Firestore/Protos/protos/google/firestore/v1beta1/firestore.proto
index 3939caa..c7e8561 100644
--- a/Firestore/Protos/protos/google/firestore/v1beta1/firestore.proto
+++ b/Firestore/Protos/protos/google/firestore/v1beta1/firestore.proto
@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc.
+// Copyright 2018 Google Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -31,6 +31,7 @@ option java_multiple_files = true;
 option java_outer_classname = "FirestoreProto";
 option java_package = "com.google.firestore.v1beta1";
 option objc_class_prefix = "GCFS";
+option php_namespace = "Google\\Cloud\\Firestore\\V1beta1";
 
 // Specification of the Firestore API.
 
@@ -55,27 +56,39 @@ option objc_class_prefix = "GCFS";
 service Firestore {
   // Gets a single document.
   rpc GetDocument(GetDocumentRequest) returns (Document) {
-    option (google.api.http) = { get: "/v1beta1/{name=projects/*/databases/*/documents/*/**}" };
+    option (google.api.http) = {
+      get: "/v1beta1/{name=projects/*/databases/*/documents/*/**}"
+    };
   }
 
   // Lists documents.
   rpc ListDocuments(ListDocumentsRequest) returns (ListDocumentsResponse) {
-    option (google.api.http) = { get: "/v1beta1/{parent=projects/*/databases/*/documents/*/**}/{collection_id}" };
+    option (google.api.http) = {
+      get: "/v1beta1/{parent=projects/*/databases/*/documents/*/**}/{collection_id}"
+    };
   }
 
   // Creates a new document.
   rpc CreateDocument(CreateDocumentRequest) returns (Document) {
-    option (google.api.http) = { post: "/v1beta1/{parent=projects/*/databases/*/documents/**}/{collection_id}" body: "document" };
+    option (google.api.http) = {
+      post: "/v1beta1/{parent=projects/*/databases/*/documents/**}/{collection_id}"
+      body: "document"
+    };
   }
 
   // Updates or inserts a document.
   rpc UpdateDocument(UpdateDocumentRequest) returns (Document) {
-    option (google.api.http) = { patch: "/v1beta1/{document.name=projects/*/databases/*/documents/*/**}" body: "document" };
+    option (google.api.http) = {
+      patch: "/v1beta1/{document.name=projects/*/databases/*/documents/*/**}"
+      body: "document"
+    };
   }
 
   // Deletes a document.
   rpc DeleteDocument(DeleteDocumentRequest) returns (google.protobuf.Empty) {
-    option (google.api.http) = { delete: "/v1beta1/{name=projects/*/databases/*/documents/*/**}" };
+    option (google.api.http) = {
+      delete: "/v1beta1/{name=projects/*/databases/*/documents/*/**}"
+    };
   }
 
   // Gets multiple documents.
@@ -83,42 +96,74 @@ service Firestore {
   // Documents returned by this method are not guaranteed to be returned in the
   // same order that they were requested.
   rpc BatchGetDocuments(BatchGetDocumentsRequest) returns (stream BatchGetDocumentsResponse) {
-    option (google.api.http) = { post: "/v1beta1/{database=projects/*/databases/*}/documents:batchGet" body: "*" };
+    option (google.api.http) = {
+      post: "/v1beta1/{database=projects/*/databases/*}/documents:batchGet"
+      body: "*"
+    };
   }
 
   // Starts a new transaction.
   rpc BeginTransaction(BeginTransactionRequest) returns (BeginTransactionResponse) {
-    option (google.api.http) = { post: "/v1beta1/{database=projects/*/databases/*}/documents:beginTransaction" body: "*" };
+    option (google.api.http) = {
+      post: "/v1beta1/{database=projects/*/databases/*}/documents:beginTransaction"
+      body: "*"
+    };
   }
 
   // Commits a transaction, while optionally updating documents.
   rpc Commit(CommitRequest) returns (CommitResponse) {
-    option (google.api.http) = { post: "/v1beta1/{database=projects/*/databases/*}/documents:commit" body: "*" };
+    option (google.api.http) = {
+      post: "/v1beta1/{database=projects/*/databases/*}/documents:commit"
+      body: "*"
+    };
   }
 
   // Rolls back a transaction.
   rpc Rollback(RollbackRequest) returns (google.protobuf.Empty) {
-    option (google.api.http) = { post: "/v1beta1/{database=projects/*/databases/*}/documents:rollback" body: "*" };
+    option (google.api.http) = {
+      post: "/v1beta1/{database=projects/*/databases/*}/documents:rollback"
+      body: "*"
+    };
   }
 
   // Runs a query.
   rpc RunQuery(RunQueryRequest) returns (stream RunQueryResponse) {
-    option (google.api.http) = { post: "/v1beta1/{parent=projects/*/databases/*/documents}:runQuery" body: "*" };
+    option (google.api.http) = {
+      post: "/v1beta1/{parent=projects/*/databases/*/documents}:runQuery"
+      body: "*"
+      additional_bindings {
+        post: "/v1beta1/{parent=projects/*/databases/*/documents/*/**}:runQuery"
+        body: "*"
+      }
+    };
   }
 
   // Streams batches of document updates and deletes, in order.
   rpc Write(stream WriteRequest) returns (stream WriteResponse) {
-    option (google.api.http) = { post: "/v1beta1/{database=projects/*/databases/*}/documents:write" body: "*" };
+    option (google.api.http) = {
+      post: "/v1beta1/{database=projects/*/databases/*}/documents:write"
+      body: "*"
+    };
   }
 
   // Listens to changes.
   rpc Listen(stream ListenRequest) returns (stream ListenResponse) {
-    option (google.api.http) = { post: "/v1beta1/{database=projects/*/databases/*}/documents:listen" body: "*" };
+    option (google.api.http) = {
+      post: "/v1beta1/{database=projects/*/databases/*}/documents:listen"
+      body: "*"
+    };
   }
 
   // Lists all the collection IDs underneath a document.
   rpc ListCollectionIds(ListCollectionIdsRequest) returns (ListCollectionIdsResponse) {
-    option (google.api.http) = { post: "/v1beta1/{parent=projects/*/databases/*/documents}:listCollectionIds" body: "*" };
+    option (google.api.http) = {
+      post: "/v1beta1/{parent=projects/*/databases/*/documents}:listCollectionIds"
+      body: "*"
+      additional_bindings {
+        post: "/v1beta1/{parent=projects/*/databases/*/documents/*/**}:listCollectionIds"
+        body: "*"
+      }
+    };
   }
 }
 
@@ -356,8 +401,7 @@ message CommitRequest {
   // Always executed atomically and in order.
   repeated Write writes = 2;
 
-  // If non-empty, applies all writes in this transaction, and commits it.
-  // Otherwise, applies the writes as if they were in their own transaction.
+  // If set, applies all writes in this transaction, and commits it.
   bytes transaction = 3;
 }
 
diff --git a/Firestore/Protos/protos/google/firestore/v1beta1/query.proto b/Firestore/Protos/protos/google/firestore/v1beta1/query.proto
index d19b022..5f5b0cf 100644
--- a/Firestore/Protos/protos/google/firestore/v1beta1/query.proto
+++ b/Firestore/Protos/protos/google/firestore/v1beta1/query.proto
@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc.
+// Copyright 2018 Google Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -26,6 +26,7 @@ option java_multiple_files = true;
 option java_outer_classname = "QueryProto";
 option java_package = "com.google.firestore.v1beta1";
 option objc_class_prefix = "GCFS";
+option php_namespace = "Google\\Cloud\\Firestore\\V1beta1";
 
 
 // A Firestore query.
@@ -98,6 +99,9 @@ message StructuredQuery {
 
       // Equal.
       EQUAL = 5;
+
+      // Contains. Requires that the field is an array.
+      ARRAY_CONTAINS = 7;
     }
 
     // The field to filter by.
diff --git a/Firestore/Protos/protos/google/firestore/v1beta1/write.proto b/Firestore/Protos/protos/google/firestore/v1beta1/write.proto
index b6e9d5f..3f4732b 100644
--- a/Firestore/Protos/protos/google/firestore/v1beta1/write.proto
+++ b/Firestore/Protos/protos/google/firestore/v1beta1/write.proto
@@ -1,4 +1,4 @@
-// Copyright 2017 Google Inc.
+// Copyright 2018 Google Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@ option java_multiple_files = true;
 option java_outer_classname = "WriteProto";
 option java_package = "com.google.firestore.v1beta1";
 option objc_class_prefix = "GCFS";
+option php_namespace = "Google\\Cloud\\Firestore\\V1beta1";
 
 
 // A write on a document.
@@ -40,11 +41,6 @@ message Write {
     // `projects/{project_id}/databases/{database_id}/documents/{document_path}`.
     string delete = 2;
 
-    // The name of a document on which to verify the `current_document`
-    // precondition.
-    // This only requires read access to the document.
-    string verify = 5;
-
     // Applies a tranformation to a document.
     // At most one `transform` per document is allowed in a given request.
     // An `update` cannot follow a `transform` on the same document in a given
@@ -55,9 +51,10 @@ message Write {
   // The fields to update in this write.
   //
   // This field can be set only when the operation is `update`.
-  // None of the field paths in the mask may contain a reserved name.
-  // If the document exists on the server and has fields not referenced in the
-  // mask, they are left unchanged.
+  // If the mask is not set for an `update` and the document exists, any
+  // existing data will be overwritten.
+  // If the mask is set and the document on the server has fields not covered by
+  // the mask, they are left unchanged.
   // Fields referenced in the mask, but not present in the input document, are
   // deleted from the document on the server.
   // The field paths in this mask must not contain a reserved field name.
@@ -78,7 +75,8 @@ message DocumentTransform {
       // Unspecified. This value must not be used.
       SERVER_VALUE_UNSPECIFIED = 0;
 
-      // The time at which the server processed the request.
+      // The time at which the server processed the request, with millisecond
+      // precision.
       REQUEST_TIME = 1;
     }
 
@@ -90,6 +88,32 @@ message DocumentTransform {
     oneof transform_type {
       // Sets the field to the given server value.
       ServerValue set_to_server_value = 2;
+
+      // Append the given elements in order if they are not already present in
+      // the current field value.
+      // If the field is not an array, or if the field does not yet exist, it is
+      // first set to the empty array.
+      //
+      // Equivalent numbers of different types (e.g. 3L and 3.0) are
+      // considered equal when checking if a value is missing.
+      // NaN is equal to NaN, and Null is equal to Null.
+      // If the input contains multiple equivalent values, only the first will
+      // be considered.
+      //
+      // The corresponding transform_result will be the null value.
+      ArrayValue append_missing_elements = 6;
+
+      // Remove all of the given elements from the array in the field.
+      // If the field is not an array, or if the field does not yet exist, it is
+      // set to the empty array.
+      //
+      // Equivalent numbers of the different types (e.g. 3L and 3.0) are
+      // considered equal when deciding whether an element should be removed.
+      // NaN is equal to NaN, and Null is equal to Null.
+      // This will remove all equivalent values if there are duplicates.
+      //
+      // The corresponding transform_result will be the null value.
+      ArrayValue remove_all_from_array = 7;
     }
   }
 
@@ -98,6 +122,7 @@ message DocumentTransform {
 
   // The list of transformations to apply to the fields of the document, in
   // order.
+  // This must not be empty.
   repeated FieldTransform field_transforms = 2;
 }
 
diff --git a/Firestore/Protos/protos/google/protobuf/any.proto b/Firestore/Protos/protos/google/protobuf/any.proto
index c748667..4932942 100644
--- a/Firestore/Protos/protos/google/protobuf/any.proto
+++ b/Firestore/Protos/protos/google/protobuf/any.proto
@@ -120,17 +120,18 @@ option objc_class_prefix = "GPB";
 //     }
 //
 message Any {
-  // A URL/resource name whose content describes the type of the
-  // serialized protocol buffer message.
+  // A URL/resource name that uniquely identifies the type of the serialized
+  // protocol buffer message. The last segment of the URL's path must represent
+  // the fully qualified name of the type (as in
+  // `path/google.protobuf.Duration`). The name should be in a canonical form
+  // (e.g., leading "." is not accepted).
   //
-  // For URLs which use the scheme `http`, `https`, or no scheme, the
-  // following restrictions and interpretations apply:
+  // In practice, teams usually precompile into the binary all types that they
+  // expect it to use in the context of Any. However, for URLs which use the
+  // scheme `http`, `https`, or no scheme, one can optionally set up a type
+  // server that maps type URLs to message definitions as follows:
   //
   // * If no scheme is provided, `https` is assumed.
-  // * The last segment of the URL's path must represent the fully
-  //   qualified name of the type (as in `path/google.protobuf.Duration`).
-  //   The name should be in a canonical form (e.g., leading "." is
-  //   not accepted).
   // * An HTTP GET on the URL must yield a [google.protobuf.Type][]
   //   value in binary format, or produce an error.
   // * Applications are allowed to cache lookup results based on the
@@ -139,6 +140,10 @@ message Any {
   //   on changes to types. (Use versioned type names to manage
   //   breaking changes.)
   //
+  // Note: this functionality is not currently available in the official
+  // protobuf release, and it is not used for type URLs beginning with
+  // type.googleapis.com.
+  //
   // Schemes other than `http`, `https` (or the empty scheme) might be
   // used with implementation specific semantics.
   //
diff --git a/Firestore/Protos/protos/google/protobuf/timestamp.proto b/Firestore/Protos/protos/google/protobuf/timestamp.proto
index b7cbd17..eafb3fa 100644
--- a/Firestore/Protos/protos/google/protobuf/timestamp.proto
+++ b/Firestore/Protos/protos/google/protobuf/timestamp.proto
@@ -103,7 +103,9 @@ option objc_class_prefix = "GPB";
 // {hour}, {min}, and {sec} are zero-padded to two digits each. The fractional
 // seconds, which can go up to 9 digits (i.e. up to 1 nanosecond resolution),
 // are optional. The "Z" suffix indicates the timezone ("UTC"); the timezone
-// is required, though only UTC (as indicated by "Z") is presently supported.
+// is required. A proto3 JSON serializer should always use UTC (as indicated by
+// "Z") when printing the Timestamp type and a proto3 JSON parser should be
+// able to accept both UTC and other timezones (as indicated by an offset).
 //
 // For example, "2017-01-15T01:30:15.01Z" encodes 15.01 seconds past
 // 01:30 UTC on January 15, 2017.
@@ -114,8 +116,8 @@ option objc_class_prefix = "GPB";
 // to this format using [`strftime`](https://docs.python.org/2/library/time.html#time.strftime)
 // with the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one
 // can use the Joda Time's [`ISODateTimeFormat.dateTime()`](
-// http://joda-time.sourceforge.net/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime())
-// to obtain a formatter capable of generating timestamps in this format.
+// http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--
+// ) to obtain a formatter capable of generating timestamps in this format.
 //
 //
 message Timestamp {