Merge branch 'master' into down-integrate

42 files changed, 788 insertions, 5075 deletions

diff --git a/objectivec/DevTools/full_mac_build.sh b/objectivec/DevTools/full_mac_build.sh
index a825789f..7e1e9a05 100755
--- a/objectivec/DevTools/full_mac_build.sh
+++ b/objectivec/DevTools/full_mac_build.sh
@@ -253,36 +253,20 @@ if [[ "${DO_XCODE_IOS_TESTS}" == "yes" ]] ; then
       XCODEBUILD_TEST_BASE_IOS+=(
           -destination "platform=iOS Simulator,name=iPhone 4s,OS=9.0" # 32bit
           -destination "platform=iOS Simulator,name=iPhone 7,OS=10.0" # 64bit
-          -destination "platform=iOS Simulator,name=iPad 2,OS=9.0" # 32bit
-          -destination "platform=iOS Simulator,name=iPad Pro (9.7 inch),OS=10.0" # 64bit
       )
       ;;
-    8.1* )
-      XCODEBUILD_TEST_BASE_IOS+=(
-          -destination "platform=iOS Simulator,name=iPhone 4s,OS=8.1" # 32bit
-          -destination "platform=iOS Simulator,name=iPhone 7,OS=10.1" # 64bit
-          -destination "platform=iOS Simulator,name=iPad 2,OS=8.1" # 32bit
-          -destination "platform=iOS Simulator,name=iPad Pro (9.7 inch),OS=10.1" # 64bit
-      )
-      ;;
-    8.2* )
-      XCODEBUILD_TEST_BASE_IOS+=(
-          -destination "platform=iOS Simulator,name=iPhone 4s,OS=8.1" # 32bit
-          -destination "platform=iOS Simulator,name=iPhone 7,OS=10.2" # 64bit
-          -destination "platform=iOS Simulator,name=iPad 2,OS=8.1" # 32bit
-          -destination "platform=iOS Simulator,name=iPad Pro (9.7 inch),OS=10.2" # 64bit
-      )
-      ;;
-    8.3* )
+    8.[1-3]* )
       XCODEBUILD_TEST_BASE_IOS+=(
           -destination "platform=iOS Simulator,name=iPhone 4s,OS=8.1" # 32bit
           -destination "platform=iOS Simulator,name=iPhone 7,OS=latest" # 64bit
       )
       ;;
-    9.0* )
+    9.[0-1]* )
       XCODEBUILD_TEST_BASE_IOS+=(
           -destination "platform=iOS Simulator,name=iPhone 4s,OS=8.1" # 32bit
           -destination "platform=iOS Simulator,name=iPhone 7,OS=latest" # 64bit
+          # 9.0/9.1 both seem to often fail running destinations in parallel
+          -disable-concurrent-testing
       )
       ;;
     * )
@@ -299,7 +283,7 @@ if [[ "${DO_XCODE_IOS_TESTS}" == "yes" ]] ; then
     "${XCODEBUILD_TEST_BASE_IOS[@]}" -configuration Release test
   fi
   # Don't leave the simulator in the developer's face.
-  killall Simulator
+  killall Simulator 2> /dev/null || true
 fi
 if [[ "${DO_XCODE_OSX_TESTS}" == "yes" ]] ; then
   XCODEBUILD_TEST_BASE_OSX=(
diff --git a/objectivec/GPBCodedOutputStream.m b/objectivec/GPBCodedOutputStream.m
index c299040f..f832e8a6 100644
--- a/objectivec/GPBCodedOutputStream.m
+++ b/objectivec/GPBCodedOutputStream.m
@@ -174,10 +174,10 @@ static void GPBWriteRawLittleEndian64(GPBOutputBufferState *state,
                                 data:(NSMutableData *)data {
   if ((self = [super init])) {
     buffer_ = [data retain];
-    [output open];
     state_.bytes = [data mutableBytes];
     state_.size = [data length];
     state_.output = [output retain];
+    [state_.output open];
   }
   return self;
 }
diff --git a/objectivec/GPBDictionary.h b/objectivec/GPBDictionary.h
index 9d674150..a81165e8 100644
--- a/objectivec/GPBDictionary.h
+++ b/objectivec/GPBDictionary.h
@@ -60,55 +60,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [__nullable])values
-                              forKeys:(const uint32_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32UInt32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -204,55 +155,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt32s:(const int32_t [__nullable])values
-                             forKeys:(const uint32_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32Int32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -348,55 +250,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [__nullable])values
-                              forKeys:(const uint32_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32UInt64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -492,55 +345,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt64s:(const int64_t [__nullable])values
-                             forKeys:(const uint32_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32Int64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -636,55 +440,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithBools:(const BOOL [__nullable])values
-                            forKeys:(const uint32_t [__nullable])keys
-                              count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32BoolDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -780,55 +535,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithFloats:(const float [__nullable])values
-                             forKeys:(const uint32_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32FloatDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -924,55 +630,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithDoubles:(const double [__nullable])values
-                              forKeys:(const uint32_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32DoubleDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -1070,70 +727,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) GPBEnumValidationFunc validationFunc;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given validation function.
- *
- * @param func The enum validation function for the dictionary.
- *
- * @return A newly instanced dictionary.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param func     The enum validation function for the dictionary.
- * @param rawValue The raw enum value to be placed in the dictionary.
- * @param key      The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param func   The enum validation function for the dictionary.
- * @param values The raw enum values values to be placed in the dictionary.
- * @param keys   The keys under which to store the values.
- * @param count  The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [__nullable])values
-                                         forKeys:(const uint32_t [__nullable])keys
-                                           count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32EnumDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param func     The enum validation function for the dictionary.
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems;
-
-/**
  * Initializes a dictionary with the given validation function.
  *
  * @param func The enum validation function for the dictionary.
@@ -1294,55 +887,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param object     The value to be placed in the dictionary.
- * @param key        The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithObject:(ObjectType)object
-                              forKey:(uint32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param objects      The values to be placed in the dictionary.
- * @param keys         The keys under which to store the values.
- * @param count        The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithObjects:(const ObjectType __nonnull GPB_UNSAFE_UNRETAINED [__nullable])objects
-                              forKeys:(const uint32_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32ObjectDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param objects      The values to be placed in this dictionary.
@@ -1437,55 +981,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [__nullable])values
-                              forKeys:(const int32_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32UInt32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -1581,55 +1076,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt32s:(const int32_t [__nullable])values
-                             forKeys:(const int32_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32Int32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -1725,55 +1171,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [__nullable])values
-                              forKeys:(const int32_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32UInt64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -1869,55 +1266,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt64s:(const int64_t [__nullable])values
-                             forKeys:(const int32_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32Int64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -2013,55 +1361,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithBools:(const BOOL [__nullable])values
-                            forKeys:(const int32_t [__nullable])keys
-                              count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32BoolDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -2157,55 +1456,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithFloats:(const float [__nullable])values
-                             forKeys:(const int32_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32FloatDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -2301,55 +1551,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithDoubles:(const double [__nullable])values
-                              forKeys:(const int32_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32DoubleDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -2447,70 +1648,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) GPBEnumValidationFunc validationFunc;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given validation function.
- *
- * @param func The enum validation function for the dictionary.
- *
- * @return A newly instanced dictionary.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param func     The enum validation function for the dictionary.
- * @param rawValue The raw enum value to be placed in the dictionary.
- * @param key      The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param func   The enum validation function for the dictionary.
- * @param values The raw enum values values to be placed in the dictionary.
- * @param keys   The keys under which to store the values.
- * @param count  The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [__nullable])values
-                                         forKeys:(const int32_t [__nullable])keys
-                                           count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32EnumDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param func     The enum validation function for the dictionary.
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems;
-
-/**
  * Initializes a dictionary with the given validation function.
  *
  * @param func The enum validation function for the dictionary.
@@ -2671,55 +1808,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param object     The value to be placed in the dictionary.
- * @param key        The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithObject:(ObjectType)object
-                              forKey:(int32_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param objects      The values to be placed in the dictionary.
- * @param keys         The keys under which to store the values.
- * @param count        The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithObjects:(const ObjectType __nonnull GPB_UNSAFE_UNRETAINED [__nullable])objects
-                              forKeys:(const int32_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt32ObjectDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param objects      The values to be placed in this dictionary.
@@ -2814,55 +1902,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [__nullable])values
-                              forKeys:(const uint64_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64UInt32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -2958,55 +1997,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt32s:(const int32_t [__nullable])values
-                             forKeys:(const uint64_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64Int32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -3102,55 +2092,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [__nullable])values
-                              forKeys:(const uint64_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64UInt64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -3246,55 +2187,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt64s:(const int64_t [__nullable])values
-                             forKeys:(const uint64_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64Int64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -3390,55 +2282,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithBools:(const BOOL [__nullable])values
-                            forKeys:(const uint64_t [__nullable])keys
-                              count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64BoolDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -3534,55 +2377,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithFloats:(const float [__nullable])values
-                             forKeys:(const uint64_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64FloatDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -3678,55 +2472,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithDoubles:(const double [__nullable])values
-                              forKeys:(const uint64_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64DoubleDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -3824,70 +2569,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) GPBEnumValidationFunc validationFunc;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given validation function.
- *
- * @param func The enum validation function for the dictionary.
- *
- * @return A newly instanced dictionary.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param func     The enum validation function for the dictionary.
- * @param rawValue The raw enum value to be placed in the dictionary.
- * @param key      The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param func   The enum validation function for the dictionary.
- * @param values The raw enum values values to be placed in the dictionary.
- * @param keys   The keys under which to store the values.
- * @param count  The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [__nullable])values
-                                         forKeys:(const uint64_t [__nullable])keys
-                                           count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64EnumDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param func     The enum validation function for the dictionary.
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems;
-
-/**
  * Initializes a dictionary with the given validation function.
  *
  * @param func The enum validation function for the dictionary.
@@ -4048,55 +2729,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param object     The value to be placed in the dictionary.
- * @param key        The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithObject:(ObjectType)object
-                              forKey:(uint64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param objects      The values to be placed in the dictionary.
- * @param keys         The keys under which to store the values.
- * @param count        The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithObjects:(const ObjectType __nonnull GPB_UNSAFE_UNRETAINED [__nullable])objects
-                              forKeys:(const uint64_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64ObjectDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param objects      The values to be placed in this dictionary.
@@ -4191,55 +2823,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [__nullable])values
-                              forKeys:(const int64_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64UInt32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -4335,55 +2918,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt32s:(const int32_t [__nullable])values
-                             forKeys:(const int64_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64Int32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -4479,55 +3013,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [__nullable])values
-                              forKeys:(const int64_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64UInt64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -4623,55 +3108,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt64s:(const int64_t [__nullable])values
-                             forKeys:(const int64_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64Int64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -4767,55 +3203,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithBools:(const BOOL [__nullable])values
-                            forKeys:(const int64_t [__nullable])keys
-                              count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64BoolDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -4911,55 +3298,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithFloats:(const float [__nullable])values
-                             forKeys:(const int64_t [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64FloatDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -5055,55 +3393,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithDoubles:(const double [__nullable])values
-                              forKeys:(const int64_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64DoubleDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -5201,70 +3490,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) GPBEnumValidationFunc validationFunc;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given validation function.
- *
- * @param func The enum validation function for the dictionary.
- *
- * @return A newly instanced dictionary.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param func     The enum validation function for the dictionary.
- * @param rawValue The raw enum value to be placed in the dictionary.
- * @param key      The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param func   The enum validation function for the dictionary.
- * @param values The raw enum values values to be placed in the dictionary.
- * @param keys   The keys under which to store the values.
- * @param count  The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [__nullable])values
-                                         forKeys:(const int64_t [__nullable])keys
-                                           count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64EnumDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param func     The enum validation function for the dictionary.
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems;
-
-/**
  * Initializes a dictionary with the given validation function.
  *
  * @param func The enum validation function for the dictionary.
@@ -5425,55 +3650,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param object     The value to be placed in the dictionary.
- * @param key        The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithObject:(ObjectType)object
-                              forKey:(int64_t)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param objects      The values to be placed in the dictionary.
- * @param keys         The keys under which to store the values.
- * @param count        The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithObjects:(const ObjectType __nonnull GPB_UNSAFE_UNRETAINED [__nullable])objects
-                              forKeys:(const int64_t [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBInt64ObjectDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param objects      The values to be placed in this dictionary.
@@ -5568,55 +3744,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [__nullable])values
-                              forKeys:(const BOOL [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolUInt32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -5712,55 +3839,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt32s:(const int32_t [__nullable])values
-                             forKeys:(const BOOL [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolInt32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -5856,55 +3934,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [__nullable])values
-                              forKeys:(const BOOL [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolUInt64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -6000,55 +4029,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt64s:(const int64_t [__nullable])values
-                             forKeys:(const BOOL [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolInt64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -6144,55 +4124,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithBools:(const BOOL [__nullable])values
-                            forKeys:(const BOOL [__nullable])keys
-                              count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolBoolDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -6288,55 +4219,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithFloats:(const float [__nullable])values
-                             forKeys:(const BOOL [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolFloatDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -6432,55 +4314,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithDoubles:(const double [__nullable])values
-                              forKeys:(const BOOL [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolDoubleDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -6578,70 +4411,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) GPBEnumValidationFunc validationFunc;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given validation function.
- *
- * @param func The enum validation function for the dictionary.
- *
- * @return A newly instanced dictionary.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param func     The enum validation function for the dictionary.
- * @param rawValue The raw enum value to be placed in the dictionary.
- * @param key      The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param func   The enum validation function for the dictionary.
- * @param values The raw enum values values to be placed in the dictionary.
- * @param keys   The keys under which to store the values.
- * @param count  The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [__nullable])values
-                                         forKeys:(const BOOL [__nullable])keys
-                                           count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolEnumDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param func     The enum validation function for the dictionary.
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems;
-
-/**
  * Initializes a dictionary with the given validation function.
  *
  * @param func The enum validation function for the dictionary.
@@ -6802,55 +4571,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param object     The value to be placed in the dictionary.
- * @param key        The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithObject:(ObjectType)object
-                              forKey:(BOOL)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param objects      The values to be placed in the dictionary.
- * @param keys         The keys under which to store the values.
- * @param count        The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithObjects:(const ObjectType __nonnull GPB_UNSAFE_UNRETAINED [__nullable])objects
-                              forKeys:(const BOOL [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBBoolObjectDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param objects      The values to be placed in this dictionary.
@@ -6945,55 +4665,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(NSString *)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [__nullable])values
-                              forKeys:(const NSString * __nonnull GPB_UNSAFE_UNRETAINED [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBStringUInt32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -7089,55 +4760,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(NSString *)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt32s:(const int32_t [__nullable])values
-                             forKeys:(const NSString * __nonnull GPB_UNSAFE_UNRETAINED [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBStringInt32Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -7233,55 +4855,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(NSString *)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [__nullable])values
-                              forKeys:(const NSString * __nonnull GPB_UNSAFE_UNRETAINED [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBStringUInt64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -7377,55 +4950,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(NSString *)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithInt64s:(const int64_t [__nullable])values
-                             forKeys:(const NSString * __nonnull GPB_UNSAFE_UNRETAINED [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBStringInt64Dictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -7521,55 +5045,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(NSString *)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithBools:(const BOOL [__nullable])values
-                            forKeys:(const NSString * __nonnull GPB_UNSAFE_UNRETAINED [__nullable])keys
-                              count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBStringBoolDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -7665,55 +5140,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(NSString *)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithFloats:(const float [__nullable])values
-                             forKeys:(const NSString * __nonnull GPB_UNSAFE_UNRETAINED [__nullable])keys
-                               count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBStringFloatDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -7809,55 +5235,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) NSUInteger count;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param value     The value to be placed in the dictionary.
- * @param key       The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(NSString *)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param values      The values to be placed in the dictionary.
- * @param keys        The keys under which to store the values.
- * @param count       The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithDoubles:(const double [__nullable])values
-                              forKeys:(const NSString * __nonnull GPB_UNSAFE_UNRETAINED [__nullable])keys
-                                count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBStringDoubleDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-
-/**
  * Initializes this dictionary, copying the given values and keys.
  *
  * @param values      The values to be placed in this dictionary.
@@ -7955,70 +5332,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, readonly) GPBEnumValidationFunc validationFunc;
 
 /**
- * @return A newly instanced and empty dictionary.
- **/
-+ (instancetype)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given validation function.
- *
- * @param func The enum validation function for the dictionary.
- *
- * @return A newly instanced dictionary.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func;
-
-/**
- * Creates and initializes a dictionary with the single entry given.
- *
- * @param func     The enum validation function for the dictionary.
- * @param rawValue The raw enum value to be placed in the dictionary.
- * @param key      The key under which to store the value.
- *
- * @return A newly instanced dictionary with the key and value in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(NSString *)key;
-
-/**
- * Creates and initializes a dictionary with the entries given.
- *
- * @param func   The enum validation function for the dictionary.
- * @param values The raw enum values values to be placed in the dictionary.
- * @param keys   The keys under which to store the values.
- * @param count  The number of entries to store in the dictionary.
- *
- * @return A newly instanced dictionary with the keys and values in it.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [__nullable])values
-                                         forKeys:(const NSString * __nonnull GPB_UNSAFE_UNRETAINED [__nullable])keys
-                                           count:(NSUInteger)count;
-
-/**
- * Creates and initializes a dictionary with the entries from the given.
- * dictionary.
- *
- * @param dictionary Dictionary containing the entries to add to the dictionary.
- *
- * @return A newly instanced dictionary with the entries from the given
- *         dictionary in it.
- **/
-+ (instancetype)dictionaryWithDictionary:(GPBStringEnumDictionary *)dictionary;
-
-/**
- * Creates and initializes a dictionary with the given capacity.
- *
- * @param func     The enum validation function for the dictionary.
- * @param numItems Capacity needed for the dictionary.
- *
- * @return A newly instanced dictionary with the given capacity.
- **/
-+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems;
-
-/**
  * Initializes a dictionary with the given validation function.
  *
  * @param func The enum validation function for the dictionary.
@@ -8240,55 +5553,6 @@ NS_ASSUME_NONNULL_END
 //%@property(nonatomic, readonly) NSUInteger count;
 //%
 //%/**
-//% * @return A newly instanced and empty dictionary.
-//% **/
-//%+ (instancetype)dictionary;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the single entry given.
-//% *
-//% * @param ##VNAME_VAR     The value to be placed in the dictionary.
-//% * @param key ##VNAME_VAR$S## The key under which to store the value.
-//% *
-//% * @return A newly instanced dictionary with the key and value in it.
-//% **/
-//%+ (instancetype)dictionaryWith##VNAME##:(VALUE_TYPE)##VNAME_VAR
-//%                       ##VNAME$S## forKey:(KEY_TYPE##KisP$S##KisP)key;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the entries given.
-//% *
-//% * @param ##VNAME_VAR##s      The values to be placed in the dictionary.
-//% * @param keys ##VNAME_VAR$S##  The keys under which to store the values.
-//% * @param count ##VNAME_VAR$S## The number of entries to store in the dictionary.
-//% *
-//% * @return A newly instanced dictionary with the keys and values in it.
-//% **/
-//%+ (instancetype)dictionaryWith##VNAME##s:(const VALUE_TYPE ARRAY_ARG_MODIFIER##VHELPER()[__nullable])##VNAME_VAR##s
-//%                      ##VNAME$S##  forKeys:(const KEY_TYPE##KisP$S##KisP ARRAY_ARG_MODIFIER##KHELPER()[__nullable])keys
-//%                      ##VNAME$S##    count:(NSUInteger)count;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the entries from the given.
-//% * dictionary.
-//% *
-//% * @param dictionary Dictionary containing the entries to add to the dictionary.
-//% *
-//% * @return A newly instanced dictionary with the entries from the given
-//% *         dictionary in it.
-//% **/
-//%+ (instancetype)dictionaryWithDictionary:(GPB##KEY_NAME##VALUE_NAME##Dictionary *)dictionary;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the given capacity.
-//% *
-//% * @param numItems Capacity needed for the dictionary.
-//% *
-//% * @return A newly instanced dictionary with the given capacity.
-//% **/
-//%+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems;
-//%
-//%/**
 //% * Initializes this dictionary, copying the given values and keys.
 //% *
 //% * @param ##VNAME_VAR##s      The values to be placed in this dictionary.
@@ -8353,70 +5617,6 @@ NS_ASSUME_NONNULL_END
 //%@property(nonatomic, readonly) GPBEnumValidationFunc validationFunc;
 //%
 //%/**
-//% * @return A newly instanced and empty dictionary.
-//% **/
-//%+ (instancetype)dictionary;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the given validation function.
-//% *
-//% * @param func The enum validation function for the dictionary.
-//% *
-//% * @return A newly instanced dictionary.
-//% **/
-//%+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the single entry given.
-//% *
-//% * @param func     The enum validation function for the dictionary.
-//% * @param rawValue The raw enum value to be placed in the dictionary.
-//% * @param key      The key under which to store the value.
-//% *
-//% * @return A newly instanced dictionary with the key and value in it.
-//% **/
-//%+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-//%                                        rawValue:(VALUE_TYPE)rawValue
-//%                                          forKey:(KEY_TYPE##KisP$S##KisP)key;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the entries given.
-//% *
-//% * @param func   The enum validation function for the dictionary.
-//% * @param values The raw enum values values to be placed in the dictionary.
-//% * @param keys   The keys under which to store the values.
-//% * @param count  The number of entries to store in the dictionary.
-//% *
-//% * @return A newly instanced dictionary with the keys and values in it.
-//% **/
-//%+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-//%                                       rawValues:(const VALUE_TYPE ARRAY_ARG_MODIFIER##VHELPER()[__nullable])values
-//%                                         forKeys:(const KEY_TYPE##KisP$S##KisP ARRAY_ARG_MODIFIER##KHELPER()[__nullable])keys
-//%                                           count:(NSUInteger)count;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the entries from the given.
-//% * dictionary.
-//% *
-//% * @param dictionary Dictionary containing the entries to add to the dictionary.
-//% *
-//% * @return A newly instanced dictionary with the entries from the given
-//% *         dictionary in it.
-//% **/
-//%+ (instancetype)dictionaryWithDictionary:(GPB##KEY_NAME##VALUE_NAME##Dictionary *)dictionary;
-//%
-//%/**
-//% * Creates and initializes a dictionary with the given capacity.
-//% *
-//% * @param func     The enum validation function for the dictionary.
-//% * @param numItems Capacity needed for the dictionary.
-//% *
-//% * @return A newly instanced dictionary with the given capacity.
-//% **/
-//%+ (instancetype)dictionaryWithValidationFunction:(nullable GPBEnumValidationFunc)func
-//%                                        capacity:(NSUInteger)numItems;
-//%
-//%/**
 //% * Initializes a dictionary with the given validation function.
 //% *
 //% * @param func The enum validation function for the dictionary.
diff --git a/objectivec/GPBDictionary.m b/objectivec/GPBDictionary.m
index 7713376e..aa21670a 100644
--- a/objectivec/GPBDictionary.m
+++ b/objectivec/GPBDictionary.m
@@ -596,39 +596,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 //%  NSMutableDictionary *_dictionary;
 //%}
 //%
-//%+ (instancetype)dictionary {
-//%  return [[[self alloc] initWith##VNAME##s:NULL forKeys:NULL count:0] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWith##VNAME##:(VALUE_TYPE)##VNAME_VAR
-//%                      ##VNAME$S##  forKey:(KEY_TYPE##KisP$S##KisP)key {
-//%  // Cast is needed so the compiler knows what class we are invoking initWith##VNAME##s:forKeys:count:
-//%  // on to get the type correct.
-//%  return [[(GPB##KEY_NAME##VALUE_NAME##Dictionary*)[self alloc] initWith##VNAME##s:&##VNAME_VAR
-//%               KEY_NAME$S VALUE_NAME$S                        ##VNAME$S##  forKeys:&key
-//%               KEY_NAME$S VALUE_NAME$S                        ##VNAME$S##    count:1] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWith##VNAME##s:(const VALUE_TYPE [])##VNAME_VAR##s
-//%                      ##VNAME$S##  forKeys:(const KEY_TYPE##KisP$S##KisP [])keys
-//%                      ##VNAME$S##    count:(NSUInteger)count {
-//%  // Cast is needed so the compiler knows what class we are invoking initWith##VNAME##s:forKeys:count:
-//%  // on to get the type correct.
-//%  return [[(GPB##KEY_NAME##VALUE_NAME##Dictionary*)[self alloc] initWith##VNAME##s:##VNAME_VAR##s
-//%               KEY_NAME$S VALUE_NAME$S                               forKeys:keys
-//%               KEY_NAME$S VALUE_NAME$S                                 count:count] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithDictionary:(GPB##KEY_NAME##VALUE_NAME##Dictionary *)dictionary {
-//%  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-//%  // on to get the type correct.
-//%  return [[(GPB##KEY_NAME##VALUE_NAME##Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-//%  return [[[self alloc] initWithCapacity:numItems] autorelease];
-//%}
-//%
 //%- (instancetype)init {
 //%  return [self initWith##VNAME##s:NULL forKeys:NULL count:0];
 //%}
@@ -685,54 +652,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 //%
 //%@synthesize validationFunc = _validationFunc;
 //%
-//%+ (instancetype)dictionary {
-//%  return [[[self alloc] initWithValidationFunction:NULL
-//%                                         rawValues:NULL
-//%                                           forKeys:NULL
-//%                                             count:0] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func {
-//%  return [[[self alloc] initWithValidationFunction:func
-//%                                         rawValues:NULL
-//%                                           forKeys:NULL
-//%                                             count:0] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-//%                                        rawValue:(VALUE_TYPE)rawValue
-//%                                          forKey:(KEY_TYPE##KisP$S##KisP)key {
-//%  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-//%  // on to get the type correct.
-//%  return [[(GPB##KEY_NAME##VALUE_NAME##Dictionary*)[self alloc] initWithValidationFunction:func
-//%               KEY_NAME$S VALUE_NAME$S                                         rawValues:&rawValue
-//%               KEY_NAME$S VALUE_NAME$S                                           forKeys:&key
-//%               KEY_NAME$S VALUE_NAME$S                                             count:1] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-//%                                       rawValues:(const VALUE_TYPE [])rawValues
-//%                                         forKeys:(const KEY_TYPE##KisP$S##KisP [])keys
-//%                                           count:(NSUInteger)count {
-//%  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-//%  // on to get the type correct.
-//%  return [[(GPB##KEY_NAME##VALUE_NAME##Dictionary*)[self alloc] initWithValidationFunction:func
-//%               KEY_NAME$S VALUE_NAME$S                                         rawValues:rawValues
-//%               KEY_NAME$S VALUE_NAME$S                                           forKeys:keys
-//%               KEY_NAME$S VALUE_NAME$S                                             count:count] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithDictionary:(GPB##KEY_NAME##VALUE_NAME##Dictionary *)dictionary {
-//%  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-//%  // on to get the type correct.
-//%  return [[(GPB##KEY_NAME##VALUE_NAME##Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-//%                                        capacity:(NSUInteger)numItems {
-//%  return [[[self alloc] initWithValidationFunction:func capacity:numItems] autorelease];
-//%}
-//%
 //%- (instancetype)init {
 //%  return [self initWithValidationFunction:NULL rawValues:NULL forKeys:NULL count:0];
 //%}
@@ -988,39 +907,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 //%  VALUE_TYPE _values[2];
 //%BOOL_DICT_HAS_STORAGE_##HELPER()}
 //%
-//%+ (instancetype)dictionary {
-//%  return [[[self alloc] initWith##VNAME##s:NULL forKeys:NULL count:0] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWith##VNAME##:(VALUE_TYPE)VNAME_VAR
-//%                      ##VNAME$S##  forKey:(BOOL)key {
-//%  // Cast is needed so the compiler knows what class we are invoking initWith##VNAME##s:forKeys:count:
-//%  // on to get the type correct.
-//%  return [[(GPBBool##VALUE_NAME##Dictionary*)[self alloc] initWith##VNAME##s:&##VNAME_VAR
-//%                    VALUE_NAME$S                        ##VNAME$S##  forKeys:&key
-//%                    VALUE_NAME$S                        ##VNAME$S##    count:1] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWith##VNAME##s:(const VALUE_TYPE [])##VNAME_VAR##s
-//%                      ##VNAME$S##  forKeys:(const BOOL [])keys
-//%                      ##VNAME$S##    count:(NSUInteger)count {
-//%  // Cast is needed so the compiler knows what class we are invoking initWith##VNAME##s:forKeys:count:
-//%  // on to get the type correct.
-//%  return [[(GPBBool##VALUE_NAME##Dictionary*)[self alloc] initWith##VNAME##s:##VNAME_VAR##s
-//%                    VALUE_NAME$S                        ##VNAME$S##  forKeys:keys
-//%                    VALUE_NAME$S                        ##VNAME$S##    count:count] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithDictionary:(GPBBool##VALUE_NAME##Dictionary *)dictionary {
-//%  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-//%  // on to get the type correct.
-//%  return [[(GPBBool##VALUE_NAME##Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-//%}
-//%
-//%+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-//%  return [[[self alloc] initWithCapacity:numItems] autorelease];
-//%}
-//%
 //%- (instancetype)init {
 //%  return [self initWith##VNAME##s:NULL forKeys:NULL count:0];
 //%}
@@ -1549,39 +1435,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32UInt32Dictionary*)[self alloc] initWithUInt32s:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [])values
-                              forKeys:(const uint32_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32UInt32Dictionary*)[self alloc] initWithUInt32s:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32UInt32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt32UInt32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt32s:NULL forKeys:NULL count:0];
 }
@@ -1765,39 +1618,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32Int32Dictionary*)[self alloc] initWithInt32s:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32s:(const int32_t [])values
-                             forKeys:(const uint32_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32Int32Dictionary*)[self alloc] initWithInt32s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32Int32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt32Int32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt32s:NULL forKeys:NULL count:0];
 }
@@ -1981,39 +1801,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32UInt64Dictionary*)[self alloc] initWithUInt64s:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [])values
-                              forKeys:(const uint32_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32UInt64Dictionary*)[self alloc] initWithUInt64s:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32UInt64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt32UInt64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt64s:NULL forKeys:NULL count:0];
 }
@@ -2197,39 +1984,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32Int64Dictionary*)[self alloc] initWithInt64s:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64s:(const int64_t [])values
-                             forKeys:(const uint32_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32Int64Dictionary*)[self alloc] initWithInt64s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32Int64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt32Int64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt64s:NULL forKeys:NULL count:0];
 }
@@ -2413,39 +2167,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithBools:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32BoolDictionary*)[self alloc] initWithBools:&value
-                                                        forKeys:&key
-                                                          count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithBools:(const BOOL [])values
-                            forKeys:(const uint32_t [])keys
-                              count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32BoolDictionary*)[self alloc] initWithBools:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32BoolDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt32BoolDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithBools:NULL forKeys:NULL count:0];
 }
@@ -2629,39 +2350,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithFloats:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32FloatDictionary*)[self alloc] initWithFloats:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloats:(const float [])values
-                             forKeys:(const uint32_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32FloatDictionary*)[self alloc] initWithFloats:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32FloatDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt32FloatDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithFloats:NULL forKeys:NULL count:0];
 }
@@ -2845,39 +2533,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithDoubles:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32DoubleDictionary*)[self alloc] initWithDoubles:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithDoubles:(const double [])values
-                              forKeys:(const uint32_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32DoubleDictionary*)[self alloc] initWithDoubles:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32DoubleDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt32DoubleDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithDoubles:NULL forKeys:NULL count:0];
 }
@@ -3064,54 +2719,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 
 @synthesize validationFunc = _validationFunc;
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithValidationFunction:NULL
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func {
-  return [[[self alloc] initWithValidationFunction:func
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32EnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                   rawValues:&rawValue
-                                                                     forKeys:&key
-                                                                       count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [])rawValues
-                                         forKeys:(const uint32_t [])keys
-                                           count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32EnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                   rawValues:rawValues
-                                                                     forKeys:keys
-                                                                       count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32EnumDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32EnumDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithValidationFunction:func capacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithValidationFunction:NULL rawValues:NULL forKeys:NULL count:0];
 }
@@ -3361,39 +2968,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithObjects:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithObject:(id)object
-                              forKey:(uint32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32ObjectDictionary*)[self alloc] initWithObjects:&object
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithObjects:(const id [])objects
-                              forKeys:(const uint32_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt32ObjectDictionary*)[self alloc] initWithObjects:objects
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt32ObjectDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt32ObjectDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithObjects:NULL forKeys:NULL count:0];
 }
@@ -3609,39 +3183,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32UInt32Dictionary*)[self alloc] initWithUInt32s:&value
-                                                           forKeys:&key
-                                                             count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [])values
-                              forKeys:(const int32_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32UInt32Dictionary*)[self alloc] initWithUInt32s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32UInt32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt32UInt32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt32s:NULL forKeys:NULL count:0];
 }
@@ -3825,39 +3366,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32Int32Dictionary*)[self alloc] initWithInt32s:&value
-                                                         forKeys:&key
-                                                           count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32s:(const int32_t [])values
-                             forKeys:(const int32_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32Int32Dictionary*)[self alloc] initWithInt32s:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32Int32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt32Int32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt32s:NULL forKeys:NULL count:0];
 }
@@ -4041,39 +3549,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32UInt64Dictionary*)[self alloc] initWithUInt64s:&value
-                                                           forKeys:&key
-                                                             count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [])values
-                              forKeys:(const int32_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32UInt64Dictionary*)[self alloc] initWithUInt64s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32UInt64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt32UInt64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt64s:NULL forKeys:NULL count:0];
 }
@@ -4257,39 +3732,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32Int64Dictionary*)[self alloc] initWithInt64s:&value
-                                                         forKeys:&key
-                                                           count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64s:(const int64_t [])values
-                             forKeys:(const int32_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32Int64Dictionary*)[self alloc] initWithInt64s:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32Int64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt32Int64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt64s:NULL forKeys:NULL count:0];
 }
@@ -4473,39 +3915,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithBools:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32BoolDictionary*)[self alloc] initWithBools:&value
-                                                       forKeys:&key
-                                                         count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithBools:(const BOOL [])values
-                            forKeys:(const int32_t [])keys
-                              count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32BoolDictionary*)[self alloc] initWithBools:values
-                                                        forKeys:keys
-                                                          count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32BoolDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt32BoolDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithBools:NULL forKeys:NULL count:0];
 }
@@ -4689,39 +4098,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithFloats:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32FloatDictionary*)[self alloc] initWithFloats:&value
-                                                         forKeys:&key
-                                                           count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloats:(const float [])values
-                             forKeys:(const int32_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32FloatDictionary*)[self alloc] initWithFloats:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32FloatDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt32FloatDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithFloats:NULL forKeys:NULL count:0];
 }
@@ -4905,39 +4281,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithDoubles:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32DoubleDictionary*)[self alloc] initWithDoubles:&value
-                                                           forKeys:&key
-                                                             count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithDoubles:(const double [])values
-                              forKeys:(const int32_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32DoubleDictionary*)[self alloc] initWithDoubles:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32DoubleDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt32DoubleDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithDoubles:NULL forKeys:NULL count:0];
 }
@@ -5124,54 +4467,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 
 @synthesize validationFunc = _validationFunc;
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithValidationFunction:NULL
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func {
-  return [[[self alloc] initWithValidationFunction:func
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32EnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                  rawValues:&rawValue
-                                                                    forKeys:&key
-                                                                      count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [])rawValues
-                                         forKeys:(const int32_t [])keys
-                                           count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32EnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                  rawValues:rawValues
-                                                                    forKeys:keys
-                                                                      count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32EnumDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32EnumDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithValidationFunction:func capacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithValidationFunction:NULL rawValues:NULL forKeys:NULL count:0];
 }
@@ -5421,39 +4716,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithObjects:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithObject:(id)object
-                              forKey:(int32_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32ObjectDictionary*)[self alloc] initWithObjects:&object
-                                                           forKeys:&key
-                                                             count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithObjects:(const id [])objects
-                              forKeys:(const int32_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt32ObjectDictionary*)[self alloc] initWithObjects:objects
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt32ObjectDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt32ObjectDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithObjects:NULL forKeys:NULL count:0];
 }
@@ -5669,39 +4931,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64UInt32Dictionary*)[self alloc] initWithUInt32s:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [])values
-                              forKeys:(const uint64_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64UInt32Dictionary*)[self alloc] initWithUInt32s:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64UInt32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt64UInt32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt32s:NULL forKeys:NULL count:0];
 }
@@ -5885,39 +5114,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64Int32Dictionary*)[self alloc] initWithInt32s:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32s:(const int32_t [])values
-                             forKeys:(const uint64_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64Int32Dictionary*)[self alloc] initWithInt32s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64Int32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt64Int32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt32s:NULL forKeys:NULL count:0];
 }
@@ -6101,39 +5297,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64UInt64Dictionary*)[self alloc] initWithUInt64s:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [])values
-                              forKeys:(const uint64_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64UInt64Dictionary*)[self alloc] initWithUInt64s:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64UInt64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt64UInt64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt64s:NULL forKeys:NULL count:0];
 }
@@ -6317,39 +5480,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64Int64Dictionary*)[self alloc] initWithInt64s:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64s:(const int64_t [])values
-                             forKeys:(const uint64_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64Int64Dictionary*)[self alloc] initWithInt64s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64Int64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt64Int64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt64s:NULL forKeys:NULL count:0];
 }
@@ -6533,39 +5663,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithBools:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64BoolDictionary*)[self alloc] initWithBools:&value
-                                                        forKeys:&key
-                                                          count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithBools:(const BOOL [])values
-                            forKeys:(const uint64_t [])keys
-                              count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64BoolDictionary*)[self alloc] initWithBools:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64BoolDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt64BoolDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithBools:NULL forKeys:NULL count:0];
 }
@@ -6749,39 +5846,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithFloats:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64FloatDictionary*)[self alloc] initWithFloats:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloats:(const float [])values
-                             forKeys:(const uint64_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64FloatDictionary*)[self alloc] initWithFloats:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64FloatDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt64FloatDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithFloats:NULL forKeys:NULL count:0];
 }
@@ -6965,39 +6029,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithDoubles:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64DoubleDictionary*)[self alloc] initWithDoubles:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithDoubles:(const double [])values
-                              forKeys:(const uint64_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64DoubleDictionary*)[self alloc] initWithDoubles:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64DoubleDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt64DoubleDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithDoubles:NULL forKeys:NULL count:0];
 }
@@ -7184,54 +6215,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 
 @synthesize validationFunc = _validationFunc;
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithValidationFunction:NULL
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func {
-  return [[[self alloc] initWithValidationFunction:func
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64EnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                   rawValues:&rawValue
-                                                                     forKeys:&key
-                                                                       count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [])rawValues
-                                         forKeys:(const uint64_t [])keys
-                                           count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64EnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                   rawValues:rawValues
-                                                                     forKeys:keys
-                                                                       count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64EnumDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64EnumDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithValidationFunction:func capacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithValidationFunction:NULL rawValues:NULL forKeys:NULL count:0];
 }
@@ -7481,39 +6464,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithObjects:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithObject:(id)object
-                              forKey:(uint64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64ObjectDictionary*)[self alloc] initWithObjects:&object
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithObjects:(const id [])objects
-                              forKeys:(const uint64_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBUInt64ObjectDictionary*)[self alloc] initWithObjects:objects
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBUInt64ObjectDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBUInt64ObjectDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithObjects:NULL forKeys:NULL count:0];
 }
@@ -7729,39 +6679,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64UInt32Dictionary*)[self alloc] initWithUInt32s:&value
-                                                           forKeys:&key
-                                                             count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [])values
-                              forKeys:(const int64_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64UInt32Dictionary*)[self alloc] initWithUInt32s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64UInt32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt64UInt32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt32s:NULL forKeys:NULL count:0];
 }
@@ -7945,39 +6862,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64Int32Dictionary*)[self alloc] initWithInt32s:&value
-                                                         forKeys:&key
-                                                           count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32s:(const int32_t [])values
-                             forKeys:(const int64_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64Int32Dictionary*)[self alloc] initWithInt32s:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64Int32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt64Int32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt32s:NULL forKeys:NULL count:0];
 }
@@ -8161,39 +7045,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64UInt64Dictionary*)[self alloc] initWithUInt64s:&value
-                                                           forKeys:&key
-                                                             count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [])values
-                              forKeys:(const int64_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64UInt64Dictionary*)[self alloc] initWithUInt64s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64UInt64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt64UInt64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt64s:NULL forKeys:NULL count:0];
 }
@@ -8377,39 +7228,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64Int64Dictionary*)[self alloc] initWithInt64s:&value
-                                                         forKeys:&key
-                                                           count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64s:(const int64_t [])values
-                             forKeys:(const int64_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64Int64Dictionary*)[self alloc] initWithInt64s:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64Int64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt64Int64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt64s:NULL forKeys:NULL count:0];
 }
@@ -8593,39 +7411,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithBools:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64BoolDictionary*)[self alloc] initWithBools:&value
-                                                       forKeys:&key
-                                                         count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithBools:(const BOOL [])values
-                            forKeys:(const int64_t [])keys
-                              count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64BoolDictionary*)[self alloc] initWithBools:values
-                                                        forKeys:keys
-                                                          count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64BoolDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt64BoolDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithBools:NULL forKeys:NULL count:0];
 }
@@ -8809,39 +7594,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithFloats:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64FloatDictionary*)[self alloc] initWithFloats:&value
-                                                         forKeys:&key
-                                                           count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloats:(const float [])values
-                             forKeys:(const int64_t [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64FloatDictionary*)[self alloc] initWithFloats:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64FloatDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt64FloatDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithFloats:NULL forKeys:NULL count:0];
 }
@@ -9025,39 +7777,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithDoubles:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64DoubleDictionary*)[self alloc] initWithDoubles:&value
-                                                           forKeys:&key
-                                                             count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithDoubles:(const double [])values
-                              forKeys:(const int64_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64DoubleDictionary*)[self alloc] initWithDoubles:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64DoubleDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt64DoubleDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithDoubles:NULL forKeys:NULL count:0];
 }
@@ -9244,54 +7963,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 
 @synthesize validationFunc = _validationFunc;
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithValidationFunction:NULL
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func {
-  return [[[self alloc] initWithValidationFunction:func
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64EnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                  rawValues:&rawValue
-                                                                    forKeys:&key
-                                                                      count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [])rawValues
-                                         forKeys:(const int64_t [])keys
-                                           count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64EnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                  rawValues:rawValues
-                                                                    forKeys:keys
-                                                                      count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64EnumDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64EnumDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithValidationFunction:func capacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithValidationFunction:NULL rawValues:NULL forKeys:NULL count:0];
 }
@@ -9541,39 +8212,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithObjects:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithObject:(id)object
-                              forKey:(int64_t)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64ObjectDictionary*)[self alloc] initWithObjects:&object
-                                                           forKeys:&key
-                                                             count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithObjects:(const id [])objects
-                              forKeys:(const int64_t [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBInt64ObjectDictionary*)[self alloc] initWithObjects:objects
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBInt64ObjectDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBInt64ObjectDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithObjects:NULL forKeys:NULL count:0];
 }
@@ -9789,39 +8427,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(NSString *)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringUInt32Dictionary*)[self alloc] initWithUInt32s:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [])values
-                              forKeys:(const NSString * [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringUInt32Dictionary*)[self alloc] initWithUInt32s:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBStringUInt32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBStringUInt32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt32s:NULL forKeys:NULL count:0];
 }
@@ -10013,39 +8618,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(NSString *)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringInt32Dictionary*)[self alloc] initWithInt32s:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32s:(const int32_t [])values
-                             forKeys:(const NSString * [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringInt32Dictionary*)[self alloc] initWithInt32s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBStringInt32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBStringInt32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt32s:NULL forKeys:NULL count:0];
 }
@@ -10237,39 +8809,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(NSString *)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringUInt64Dictionary*)[self alloc] initWithUInt64s:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [])values
-                              forKeys:(const NSString * [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringUInt64Dictionary*)[self alloc] initWithUInt64s:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBStringUInt64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBStringUInt64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt64s:NULL forKeys:NULL count:0];
 }
@@ -10461,39 +9000,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(NSString *)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringInt64Dictionary*)[self alloc] initWithInt64s:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64s:(const int64_t [])values
-                             forKeys:(const NSString * [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringInt64Dictionary*)[self alloc] initWithInt64s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBStringInt64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBStringInt64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt64s:NULL forKeys:NULL count:0];
 }
@@ -10685,39 +9191,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithBools:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(NSString *)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringBoolDictionary*)[self alloc] initWithBools:&value
-                                                        forKeys:&key
-                                                          count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithBools:(const BOOL [])values
-                            forKeys:(const NSString * [])keys
-                              count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringBoolDictionary*)[self alloc] initWithBools:values
-                                                         forKeys:keys
-                                                           count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBStringBoolDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBStringBoolDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithBools:NULL forKeys:NULL count:0];
 }
@@ -10909,39 +9382,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithFloats:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(NSString *)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringFloatDictionary*)[self alloc] initWithFloats:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloats:(const float [])values
-                             forKeys:(const NSString * [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringFloatDictionary*)[self alloc] initWithFloats:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBStringFloatDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBStringFloatDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithFloats:NULL forKeys:NULL count:0];
 }
@@ -11133,39 +9573,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   NSMutableDictionary *_dictionary;
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithDoubles:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(NSString *)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringDoubleDictionary*)[self alloc] initWithDoubles:&value
-                                                            forKeys:&key
-                                                              count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithDoubles:(const double [])values
-                              forKeys:(const NSString * [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringDoubleDictionary*)[self alloc] initWithDoubles:values
-                                                           forKeys:keys
-                                                             count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBStringDoubleDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBStringDoubleDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithDoubles:NULL forKeys:NULL count:0];
 }
@@ -11360,54 +9767,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 
 @synthesize validationFunc = _validationFunc;
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithValidationFunction:NULL
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func {
-  return [[[self alloc] initWithValidationFunction:func
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        rawValue:(int32_t)rawValue
-                                          forKey:(NSString *)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringEnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                   rawValues:&rawValue
-                                                                     forKeys:&key
-                                                                       count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [])rawValues
-                                         forKeys:(const NSString * [])keys
-                                           count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringEnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                   rawValues:rawValues
-                                                                     forKeys:keys
-                                                                       count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBStringEnumDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBStringEnumDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithValidationFunction:func capacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithValidationFunction:NULL rawValues:NULL forKeys:NULL count:0];
 }
@@ -11676,39 +10035,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   BOOL _valueSet[2];
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32:(uint32_t)value
-                              forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolUInt32Dictionary*)[self alloc] initWithUInt32s:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt32s:(const uint32_t [])values
-                              forKeys:(const BOOL [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolUInt32Dictionary*)[self alloc] initWithUInt32s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolUInt32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBBoolUInt32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt32s:NULL forKeys:NULL count:0];
 }
@@ -11918,39 +10244,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   BOOL _valueSet[2];
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt32s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32:(int32_t)value
-                             forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolInt32Dictionary*)[self alloc] initWithInt32s:&value
-                                                        forKeys:&key
-                                                          count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt32s:(const int32_t [])values
-                             forKeys:(const BOOL [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt32s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolInt32Dictionary*)[self alloc] initWithInt32s:values
-                                                        forKeys:keys
-                                                          count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolInt32Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBBoolInt32Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt32s:NULL forKeys:NULL count:0];
 }
@@ -12160,39 +10453,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   BOOL _valueSet[2];
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithUInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64:(uint64_t)value
-                              forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolUInt64Dictionary*)[self alloc] initWithUInt64s:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithUInt64s:(const uint64_t [])values
-                              forKeys:(const BOOL [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithUInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolUInt64Dictionary*)[self alloc] initWithUInt64s:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolUInt64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBBoolUInt64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithUInt64s:NULL forKeys:NULL count:0];
 }
@@ -12402,39 +10662,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   BOOL _valueSet[2];
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithInt64s:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64:(int64_t)value
-                             forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolInt64Dictionary*)[self alloc] initWithInt64s:&value
-                                                        forKeys:&key
-                                                          count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithInt64s:(const int64_t [])values
-                             forKeys:(const BOOL [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithInt64s:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolInt64Dictionary*)[self alloc] initWithInt64s:values
-                                                        forKeys:keys
-                                                          count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolInt64Dictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBBoolInt64Dictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithInt64s:NULL forKeys:NULL count:0];
 }
@@ -12644,39 +10871,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   BOOL _valueSet[2];
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithBools:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithBool:(BOOL)value
-                            forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolBoolDictionary*)[self alloc] initWithBools:&value
-                                                      forKeys:&key
-                                                        count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithBools:(const BOOL [])values
-                            forKeys:(const BOOL [])keys
-                              count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithBools:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolBoolDictionary*)[self alloc] initWithBools:values
-                                                      forKeys:keys
-                                                        count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolBoolDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBBoolBoolDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithBools:NULL forKeys:NULL count:0];
 }
@@ -12886,39 +11080,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   BOOL _valueSet[2];
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithFloats:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloat:(float)value
-                             forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolFloatDictionary*)[self alloc] initWithFloats:&value
-                                                        forKeys:&key
-                                                          count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithFloats:(const float [])values
-                             forKeys:(const BOOL [])keys
-                               count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithFloats:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolFloatDictionary*)[self alloc] initWithFloats:values
-                                                        forKeys:keys
-                                                          count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolFloatDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBBoolFloatDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithFloats:NULL forKeys:NULL count:0];
 }
@@ -13128,39 +11289,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   BOOL _valueSet[2];
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithDoubles:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithDouble:(double)value
-                              forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolDoubleDictionary*)[self alloc] initWithDoubles:&value
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithDoubles:(const double [])values
-                              forKeys:(const BOOL [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithDoubles:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolDoubleDictionary*)[self alloc] initWithDoubles:values
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolDoubleDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBBoolDoubleDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithDoubles:NULL forKeys:NULL count:0];
 }
@@ -13369,39 +11497,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
   id _values[2];
 }
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithObjects:NULL forKeys:NULL count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithObject:(id)object
-                              forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolObjectDictionary*)[self alloc] initWithObjects:&object
-                                                          forKeys:&key
-                                                            count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithObjects:(const id [])objects
-                              forKeys:(const BOOL [])keys
-                                count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithObjects:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolObjectDictionary*)[self alloc] initWithObjects:objects
-                                                          forKeys:keys
-                                                            count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolObjectDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithDictionary:
-  // on to get the type correct.
-  return [[(GPBBoolObjectDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithCapacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithCapacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithObjects:NULL forKeys:NULL count:0];
 }
@@ -13635,54 +11730,6 @@ void GPBDictionaryReadEntry(id mapDictionary,
 
 @synthesize validationFunc = _validationFunc;
 
-+ (instancetype)dictionary {
-  return [[[self alloc] initWithValidationFunction:NULL
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func {
-  return [[[self alloc] initWithValidationFunction:func
-                                         rawValues:NULL
-                                           forKeys:NULL
-                                             count:0] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                       rawValue:(int32_t)rawValue
-                                          forKey:(BOOL)key {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolEnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                 rawValues:&rawValue
-                                                                   forKeys:&key
-                                                                     count:1] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                       rawValues:(const int32_t [])values
-                                         forKeys:(const BOOL [])keys
-                                           count:(NSUInteger)count {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolEnumDictionary*)[self alloc] initWithValidationFunction:func
-                                                                 rawValues:values
-                                                                   forKeys:keys
-                                                                     count:count] autorelease];
-}
-
-+ (instancetype)dictionaryWithDictionary:(GPBBoolEnumDictionary *)dictionary {
-  // Cast is needed so the compiler knows what class we are invoking initWithValues:forKeys:count:
-  // on to get the type correct.
-  return [[(GPBBoolEnumDictionary*)[self alloc] initWithDictionary:dictionary] autorelease];
-}
-
-+ (instancetype)dictionaryWithValidationFunction:(GPBEnumValidationFunc)func
-                                        capacity:(NSUInteger)numItems {
-  return [[[self alloc] initWithValidationFunction:func capacity:numItems] autorelease];
-}
-
 - (instancetype)init {
   return [self initWithValidationFunction:NULL rawValues:NULL forKeys:NULL count:0];
 }
diff --git a/objectivec/GPBMessage.m b/objectivec/GPBMessage.m
index afe39c1e..90485bd1 100644
--- a/objectivec/GPBMessage.m
+++ b/objectivec/GPBMessage.m
@@ -2998,7 +2998,10 @@ typedef struct ResolveIvarAccessorMethodResult {
   SEL encodingSelector;
 } ResolveIvarAccessorMethodResult;
 
-static void ResolveIvarGet(GPBFieldDescriptor *field,
+// |field| can be __unsafe_unretained because they are created at startup
+// and are essentially global. No need to pay for retain/release when
+// they are captured in blocks.
+static void ResolveIvarGet(__unsafe_unretained GPBFieldDescriptor *field,
                            ResolveIvarAccessorMethodResult *result) {
   GPBDataType fieldDataType = GPBGetFieldDataType(field);
   switch (fieldDataType) {
@@ -3040,7 +3043,8 @@ static void ResolveIvarGet(GPBFieldDescriptor *field,
   }
 }
 
-static void ResolveIvarSet(GPBFieldDescriptor *field,
+// See comment about __unsafe_unretained on ResolveIvarGet.
+static void ResolveIvarSet(__unsafe_unretained GPBFieldDescriptor *field,
                            GPBFileSyntax syntax,
                            ResolveIvarAccessorMethodResult *result) {
   GPBDataType fieldDataType = GPBGetFieldDataType(field);
@@ -3084,9 +3088,10 @@ static void ResolveIvarSet(GPBFieldDescriptor *field,
   // NOTE: hasOrCountSel_/setHasSel_ will be NULL if the field for the given
   // message should not have has support (done in GPBDescriptor.m), so there is
   // no need for checks here to see if has*/setHas* are allowed.
-
   ResolveIvarAccessorMethodResult result = {NULL, NULL};
-  for (GPBFieldDescriptor *field in descriptor->fields_) {
+
+  // See comment about __unsafe_unretained on ResolveIvarGet.
+  for (__unsafe_unretained GPBFieldDescriptor *field in descriptor->fields_) {
     BOOL isMapOrArray = GPBFieldIsMapOrArray(field);
     if (!isMapOrArray) {
       // Single fields.
diff --git a/objectivec/GPBRootObject.m b/objectivec/GPBRootObject.m
index 585d205a..bad2f9a7 100644
--- a/objectivec/GPBRootObject.m
+++ b/objectivec/GPBRootObject.m
@@ -43,6 +43,14 @@
 - (const char *)singletonNameC;
 @end
 
+// We need some object to conform to the MessageSignatureProtocol to make sure
+// the selectors in it are recorded in our Objective C runtime information.
+// GPBMessage is arguably the more "obvious" choice, but given that all messages
+// inherit from GPBMessage, conflicts seem likely, so we are using GPBRootObject
+// instead.
+@interface GPBRootObject () <GPBMessageSignatureProtocol>
+@end
+
 @implementation GPBRootObject
 
 // Taken from http://www.burtleburtle.net/bob/hash/doobs.html
diff --git a/objectivec/GPBUtilities.m b/objectivec/GPBUtilities.m
index 5029ec73..77ea9577 100644
--- a/objectivec/GPBUtilities.m
+++ b/objectivec/GPBUtilities.m
@@ -49,6 +49,19 @@ static void AppendTextFormatForMessage(GPBMessage *message,
                                        NSMutableString *toStr,
                                        NSString *lineIndent);
 
+// Are two datatypes the same basic type representation (ex Int32 and SInt32).
+// Marked unused because currently only called from asserts/debug.
+static BOOL DataTypesEquivalent(GPBDataType type1,
+                                GPBDataType type2) __attribute__ ((unused));
+
+// Basic type representation for a type (ex: for SInt32 it is Int32).
+// Marked unused because currently only called from asserts/debug.
+static GPBDataType BaseDataType(GPBDataType type) __attribute__ ((unused));
+
+// String name for a data type.
+// Marked unused because currently only called from asserts/debug.
+static NSString *TypeToString(GPBDataType dataType) __attribute__ ((unused));
+
 NSData *GPBEmptyNSData(void) {
   static dispatch_once_t onceToken;
   static NSData *defaultNSData = nil;
@@ -342,6 +355,14 @@ void GPBMaybeClearOneof(GPBMessage *self, GPBOneofDescriptor *oneof,
 //%PDDM-DEFINE IVAR_POD_ACCESSORS_DEFN(NAME, TYPE)
 //%TYPE GPBGetMessage##NAME##Field(GPBMessage *self,
 //% TYPE$S            NAME$S       GPBFieldDescriptor *field) {
+//%#if defined(DEBUG) && DEBUG
+//%  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+//%                                GPBDataType##NAME),
+//%            @"Attempting to get value of TYPE from field %@ "
+//%            @"of %@ which is of type %@.",
+//%            [self class], field.name,
+//%            TypeToString(GPBGetFieldDataType(field)));
+//%#endif
 //%  if (GPBGetHasIvarField(self, field)) {
 //%    uint8_t *storage = (uint8_t *)self->messageStorage_;
 //%    TYPE *typePtr = (TYPE *)&storage[field->description_->offset];
@@ -364,14 +385,24 @@ void GPBMaybeClearOneof(GPBMessage *self, GPBOneofDescriptor *oneof,
 //%            NAME$S                     GPBFieldDescriptor *field,
 //%            NAME$S                     TYPE value,
 //%            NAME$S                     GPBFileSyntax syntax) {
+//%#if defined(DEBUG) && DEBUG
+//%  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+//%                                GPBDataType##NAME),
+//%            @"Attempting to set field %@ of %@ which is of type %@ with "
+//%            @"value of type TYPE.",
+//%            [self class], field.name,
+//%            TypeToString(GPBGetFieldDataType(field)));
+//%#endif
 //%  GPBOneofDescriptor *oneof = field->containingOneof_;
 //%  if (oneof) {
 //%    GPBMessageFieldDescription *fieldDesc = field->description_;
 //%    GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
 //%  }
+//%#if defined(DEBUG) && DEBUG
 //%  NSCAssert(self->messageStorage_ != NULL,
 //%            @"%@: All messages should have storage (from init)",
 //%            [self class]);
+//%#endif
 //%#if defined(__clang_analyzer__)
 //%  if (self->messageStorage_ == NULL) return;
 //%#endif
@@ -391,6 +422,14 @@ void GPBMaybeClearOneof(GPBMessage *self, GPBOneofDescriptor *oneof,
 //%// Only exists for public api, no core code should use this.
 //%TYPE *GPBGetMessage##NAME##Field(GPBMessage *self,
 //% TYPE$S             NAME$S       GPBFieldDescriptor *field) {
+//%#if defined(DEBUG) && DEBUG
+//%  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+//%                                GPBDataType##NAME),
+//%            @"Attempting to get value of TYPE from field %@ "
+//%            @"of %@ which is of type %@.",
+//%            [self class], field.name,
+//%            TypeToString(GPBGetFieldDataType(field)));
+//%#endif
 //%  return (TYPE *)GPBGetObjectIvarWithField(self, field);
 //%}
 //%
@@ -398,6 +437,14 @@ void GPBMaybeClearOneof(GPBMessage *self, GPBOneofDescriptor *oneof,
 //%void GPBSetMessage##NAME##Field(GPBMessage *self,
 //%                   NAME$S     GPBFieldDescriptor *field,
 //%                   NAME$S     TYPE *value) {
+//%#if defined(DEBUG) && DEBUG
+//%  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+//%                                GPBDataType##NAME),
+//%            @"Attempting to set field %@ of %@ which is of type %@ with "
+//%            @"value of type TYPE.",
+//%            [self class], field.name,
+//%            TypeToString(GPBGetFieldDataType(field)));
+//%#endif
 //%  GPBSetObjectIvarWithField(self, field, (id)value);
 //%}
 //%
@@ -455,7 +502,7 @@ void GPBSetRetainedObjectIvarWithFieldInternal(GPBMessage *self,
   GPBDataType fieldType = GPBGetFieldDataType(field);
   BOOL isMapOrArray = GPBFieldIsMapOrArray(field);
   BOOL fieldIsMessage = GPBDataTypeIsMessage(fieldType);
-#ifdef DEBUG
+#if defined(DEBUG) && DEBUG
   if (value == nil && !isMapOrArray && !fieldIsMessage &&
       field.hasDefaultValue) {
     // Setting a message to nil is an obvious way to "clear" the value
@@ -618,6 +665,13 @@ int32_t GPBGetMessageEnumField(GPBMessage *self, GPBFieldDescriptor *field) {
 int32_t GPBGetEnumIvarWithFieldInternal(GPBMessage *self,
                                         GPBFieldDescriptor *field,
                                         GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(GPBGetFieldDataType(field) == GPBDataTypeEnum,
+            @"Attempting to get value of type Enum from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   int32_t result = GPBGetMessageInt32Field(self, field);
   // If this is presevering unknown enums, make sure the value is valid before
   // returning it.
@@ -638,6 +692,13 @@ void GPBSetMessageEnumField(GPBMessage *self, GPBFieldDescriptor *field,
 void GPBSetEnumIvarWithFieldInternal(GPBMessage *self,
                                      GPBFieldDescriptor *field, int32_t value,
                                      GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(GPBGetFieldDataType(field) == GPBDataTypeEnum,
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type Enum.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   // Don't allow in unknown values.  Proto3 can use the Raw method.
   if (![field isValidEnumValue:value]) {
     [NSException raise:NSInvalidArgumentException
@@ -663,6 +724,13 @@ void GPBSetMessageRawEnumField(GPBMessage *self, GPBFieldDescriptor *field,
 
 BOOL GPBGetMessageBoolField(GPBMessage *self,
                             GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field), GPBDataTypeBool),
+            @"Attempting to get value of type bool from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   if (GPBGetHasIvarField(self, field)) {
     // Bools are stored in the has bits to avoid needing explicit space in the
     // storage structure.
@@ -688,6 +756,13 @@ void GPBSetBoolIvarWithFieldInternal(GPBMessage *self,
                                      GPBFieldDescriptor *field,
                                      BOOL value,
                                      GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field), GPBDataTypeBool),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type bool.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBMessageFieldDescription *fieldDesc = field->description_;
   GPBOneofDescriptor *oneof = field->containingOneof_;
   if (oneof) {
@@ -714,6 +789,14 @@ void GPBSetBoolIvarWithFieldInternal(GPBMessage *self,
 
 int32_t GPBGetMessageInt32Field(GPBMessage *self,
                                 GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeInt32),
+            @"Attempting to get value of int32_t from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   if (GPBGetHasIvarField(self, field)) {
     uint8_t *storage = (uint8_t *)self->messageStorage_;
     int32_t *typePtr = (int32_t *)&storage[field->description_->offset];
@@ -736,14 +819,24 @@ void GPBSetInt32IvarWithFieldInternal(GPBMessage *self,
                                       GPBFieldDescriptor *field,
                                       int32_t value,
                                       GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeInt32),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type int32_t.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBOneofDescriptor *oneof = field->containingOneof_;
   if (oneof) {
     GPBMessageFieldDescription *fieldDesc = field->description_;
     GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
   }
+#if defined(DEBUG) && DEBUG
   NSCAssert(self->messageStorage_ != NULL,
             @"%@: All messages should have storage (from init)",
             [self class]);
+#endif
 #if defined(__clang_analyzer__)
   if (self->messageStorage_ == NULL) return;
 #endif
@@ -764,6 +857,14 @@ void GPBSetInt32IvarWithFieldInternal(GPBMessage *self,
 
 uint32_t GPBGetMessageUInt32Field(GPBMessage *self,
                                   GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeUInt32),
+            @"Attempting to get value of uint32_t from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   if (GPBGetHasIvarField(self, field)) {
     uint8_t *storage = (uint8_t *)self->messageStorage_;
     uint32_t *typePtr = (uint32_t *)&storage[field->description_->offset];
@@ -786,14 +887,24 @@ void GPBSetUInt32IvarWithFieldInternal(GPBMessage *self,
                                        GPBFieldDescriptor *field,
                                        uint32_t value,
                                        GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeUInt32),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type uint32_t.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBOneofDescriptor *oneof = field->containingOneof_;
   if (oneof) {
     GPBMessageFieldDescription *fieldDesc = field->description_;
     GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
   }
+#if defined(DEBUG) && DEBUG
   NSCAssert(self->messageStorage_ != NULL,
             @"%@: All messages should have storage (from init)",
             [self class]);
+#endif
 #if defined(__clang_analyzer__)
   if (self->messageStorage_ == NULL) return;
 #endif
@@ -814,6 +925,14 @@ void GPBSetUInt32IvarWithFieldInternal(GPBMessage *self,
 
 int64_t GPBGetMessageInt64Field(GPBMessage *self,
                                 GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeInt64),
+            @"Attempting to get value of int64_t from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   if (GPBGetHasIvarField(self, field)) {
     uint8_t *storage = (uint8_t *)self->messageStorage_;
     int64_t *typePtr = (int64_t *)&storage[field->description_->offset];
@@ -836,14 +955,24 @@ void GPBSetInt64IvarWithFieldInternal(GPBMessage *self,
                                       GPBFieldDescriptor *field,
                                       int64_t value,
                                       GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeInt64),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type int64_t.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBOneofDescriptor *oneof = field->containingOneof_;
   if (oneof) {
     GPBMessageFieldDescription *fieldDesc = field->description_;
     GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
   }
+#if defined(DEBUG) && DEBUG
   NSCAssert(self->messageStorage_ != NULL,
             @"%@: All messages should have storage (from init)",
             [self class]);
+#endif
 #if defined(__clang_analyzer__)
   if (self->messageStorage_ == NULL) return;
 #endif
@@ -864,6 +993,14 @@ void GPBSetInt64IvarWithFieldInternal(GPBMessage *self,
 
 uint64_t GPBGetMessageUInt64Field(GPBMessage *self,
                                   GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeUInt64),
+            @"Attempting to get value of uint64_t from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   if (GPBGetHasIvarField(self, field)) {
     uint8_t *storage = (uint8_t *)self->messageStorage_;
     uint64_t *typePtr = (uint64_t *)&storage[field->description_->offset];
@@ -886,14 +1023,24 @@ void GPBSetUInt64IvarWithFieldInternal(GPBMessage *self,
                                        GPBFieldDescriptor *field,
                                        uint64_t value,
                                        GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeUInt64),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type uint64_t.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBOneofDescriptor *oneof = field->containingOneof_;
   if (oneof) {
     GPBMessageFieldDescription *fieldDesc = field->description_;
     GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
   }
+#if defined(DEBUG) && DEBUG
   NSCAssert(self->messageStorage_ != NULL,
             @"%@: All messages should have storage (from init)",
             [self class]);
+#endif
 #if defined(__clang_analyzer__)
   if (self->messageStorage_ == NULL) return;
 #endif
@@ -914,6 +1061,14 @@ void GPBSetUInt64IvarWithFieldInternal(GPBMessage *self,
 
 float GPBGetMessageFloatField(GPBMessage *self,
                               GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeFloat),
+            @"Attempting to get value of float from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   if (GPBGetHasIvarField(self, field)) {
     uint8_t *storage = (uint8_t *)self->messageStorage_;
     float *typePtr = (float *)&storage[field->description_->offset];
@@ -936,14 +1091,24 @@ void GPBSetFloatIvarWithFieldInternal(GPBMessage *self,
                                       GPBFieldDescriptor *field,
                                       float value,
                                       GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeFloat),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type float.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBOneofDescriptor *oneof = field->containingOneof_;
   if (oneof) {
     GPBMessageFieldDescription *fieldDesc = field->description_;
     GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
   }
+#if defined(DEBUG) && DEBUG
   NSCAssert(self->messageStorage_ != NULL,
             @"%@: All messages should have storage (from init)",
             [self class]);
+#endif
 #if defined(__clang_analyzer__)
   if (self->messageStorage_ == NULL) return;
 #endif
@@ -964,6 +1129,14 @@ void GPBSetFloatIvarWithFieldInternal(GPBMessage *self,
 
 double GPBGetMessageDoubleField(GPBMessage *self,
                                 GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeDouble),
+            @"Attempting to get value of double from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   if (GPBGetHasIvarField(self, field)) {
     uint8_t *storage = (uint8_t *)self->messageStorage_;
     double *typePtr = (double *)&storage[field->description_->offset];
@@ -986,14 +1159,24 @@ void GPBSetDoubleIvarWithFieldInternal(GPBMessage *self,
                                        GPBFieldDescriptor *field,
                                        double value,
                                        GPBFileSyntax syntax) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeDouble),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type double.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBOneofDescriptor *oneof = field->containingOneof_;
   if (oneof) {
     GPBMessageFieldDescription *fieldDesc = field->description_;
     GPBMaybeClearOneof(self, oneof, fieldDesc->hasIndex, fieldDesc->number);
   }
+#if defined(DEBUG) && DEBUG
   NSCAssert(self->messageStorage_ != NULL,
             @"%@: All messages should have storage (from init)",
             [self class]);
+#endif
 #if defined(__clang_analyzer__)
   if (self->messageStorage_ == NULL) return;
 #endif
@@ -1019,6 +1202,14 @@ void GPBSetDoubleIvarWithFieldInternal(GPBMessage *self,
 // Only exists for public api, no core code should use this.
 NSString *GPBGetMessageStringField(GPBMessage *self,
                                    GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeString),
+            @"Attempting to get value of NSString from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   return (NSString *)GPBGetObjectIvarWithField(self, field);
 }
 
@@ -1026,6 +1217,14 @@ NSString *GPBGetMessageStringField(GPBMessage *self,
 void GPBSetMessageStringField(GPBMessage *self,
                               GPBFieldDescriptor *field,
                               NSString *value) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeString),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type NSString.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBSetObjectIvarWithField(self, field, (id)value);
 }
 
@@ -1035,6 +1234,14 @@ void GPBSetMessageStringField(GPBMessage *self,
 // Only exists for public api, no core code should use this.
 NSData *GPBGetMessageBytesField(GPBMessage *self,
                                 GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeBytes),
+            @"Attempting to get value of NSData from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   return (NSData *)GPBGetObjectIvarWithField(self, field);
 }
 
@@ -1042,6 +1249,14 @@ NSData *GPBGetMessageBytesField(GPBMessage *self,
 void GPBSetMessageBytesField(GPBMessage *self,
                              GPBFieldDescriptor *field,
                              NSData *value) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeBytes),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type NSData.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBSetObjectIvarWithField(self, field, (id)value);
 }
 
@@ -1051,6 +1266,14 @@ void GPBSetMessageBytesField(GPBMessage *self,
 // Only exists for public api, no core code should use this.
 GPBMessage *GPBGetMessageMessageField(GPBMessage *self,
                                       GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeMessage),
+            @"Attempting to get value of GPBMessage from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   return (GPBMessage *)GPBGetObjectIvarWithField(self, field);
 }
 
@@ -1058,6 +1281,14 @@ GPBMessage *GPBGetMessageMessageField(GPBMessage *self,
 void GPBSetMessageMessageField(GPBMessage *self,
                                GPBFieldDescriptor *field,
                                GPBMessage *value) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeMessage),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type GPBMessage.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBSetObjectIvarWithField(self, field, (id)value);
 }
 
@@ -1067,6 +1298,14 @@ void GPBSetMessageMessageField(GPBMessage *self,
 // Only exists for public api, no core code should use this.
 GPBMessage *GPBGetMessageGroupField(GPBMessage *self,
                                     GPBFieldDescriptor *field) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeGroup),
+            @"Attempting to get value of GPBMessage from field %@ "
+            @"of %@ which is of type %@.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   return (GPBMessage *)GPBGetObjectIvarWithField(self, field);
 }
 
@@ -1074,6 +1313,14 @@ GPBMessage *GPBGetMessageGroupField(GPBMessage *self,
 void GPBSetMessageGroupField(GPBMessage *self,
                              GPBFieldDescriptor *field,
                              GPBMessage *value) {
+#if defined(DEBUG) && DEBUG
+  NSCAssert(DataTypesEquivalent(GPBGetFieldDataType(field),
+                                GPBDataTypeGroup),
+            @"Attempting to set field %@ of %@ which is of type %@ with "
+            @"value of type GPBMessage.",
+            [self class], field.name,
+            TypeToString(GPBGetFieldDataType(field)));
+#endif
   GPBSetObjectIvarWithField(self, field, (id)value);
 }
 
@@ -1137,8 +1384,40 @@ void GPBSetMessageRepeatedField(GPBMessage *self, GPBFieldDescriptor *field, id
   GPBSetObjectIvarWithField(self, field, array);
 }
 
-#if defined(DEBUG) && DEBUG
-static NSString *TypeToStr(GPBDataType dataType) {
+static GPBDataType BaseDataType(GPBDataType type) {
+  switch (type) {
+    case GPBDataTypeSFixed32:
+    case GPBDataTypeInt32:
+    case GPBDataTypeSInt32:
+    case GPBDataTypeEnum:
+      return GPBDataTypeInt32;
+    case GPBDataTypeFixed32:
+    case GPBDataTypeUInt32:
+      return GPBDataTypeUInt32;
+    case GPBDataTypeSFixed64:
+    case GPBDataTypeInt64:
+    case GPBDataTypeSInt64:
+      return GPBDataTypeInt64;
+    case GPBDataTypeFixed64:
+    case GPBDataTypeUInt64:
+      return GPBDataTypeUInt64;
+    case GPBDataTypeMessage:
+    case GPBDataTypeGroup:
+      return GPBDataTypeMessage;
+    case GPBDataTypeBool:
+    case GPBDataTypeFloat:
+    case GPBDataTypeDouble:
+    case GPBDataTypeBytes:
+    case GPBDataTypeString:
+      return type;
+   }
+}
+
+static BOOL DataTypesEquivalent(GPBDataType type1, GPBDataType type2) {
+  return BaseDataType(type1) == BaseDataType(type2);
+}
+
+static NSString *TypeToString(GPBDataType dataType) {
   switch (dataType) {
     case GPBDataTypeBool:
       return @"Bool";
@@ -1166,10 +1445,9 @@ static NSString *TypeToStr(GPBDataType dataType) {
     case GPBDataTypeGroup:
       return @"Object";
     case GPBDataTypeEnum:
-      return @"Bool";
+      return @"Enum";
   }
 }
-#endif
 
 // GPBGetMessageMapField is defined in GPBMessage.m
 
@@ -1185,8 +1463,8 @@ void GPBSetMessageMapField(GPBMessage *self, GPBFieldDescriptor *field,
   if (dictionary) {
     GPBDataType keyDataType = field.mapKeyDataType;
     GPBDataType valueDataType = GPBGetFieldDataType(field);
-    NSString *keyStr = TypeToStr(keyDataType);
-    NSString *valueStr = TypeToStr(valueDataType);
+    NSString *keyStr = TypeToString(keyDataType);
+    NSString *valueStr = TypeToString(valueDataType);
     if (keyDataType == GPBDataTypeString) {
       keyStr = @"String";
     }
@@ -1216,8 +1494,11 @@ void GPBSetMessageMapField(GPBMessage *self, GPBFieldDescriptor *field,
 const char *GPBMessageEncodingForSelector(SEL selector, BOOL instanceSel) {
   Protocol *protocol =
       objc_getProtocol(GPBStringifySymbol(GPBMessageSignatureProtocol));
+  NSCAssert(protocol, @"Missing GPBMessageSignatureProtocol");
   struct objc_method_description description =
       protocol_getMethodDescription(protocol, selector, NO, instanceSel);
+  NSCAssert(description.name != Nil && description.types != nil,
+            @"Missing method for selector %@", NSStringFromSelector(selector));
   return description.types;
 }
 
@@ -1911,13 +2192,3 @@ BOOL GPBClassHasSel(Class aClass, SEL sel) {
   free(methodList);
   return result;
 }
-
-#pragma mark - GPBMessageSignatureProtocol
-
-// A series of selectors that are used solely to get @encoding values
-// for them by the dynamic protobuf runtime code. An object using the protocol
-// needs to be declared for the protocol to be valid at runtime.
-@interface GPBMessageSignatureProtocol : NSObject<GPBMessageSignatureProtocol>
-@end
-@implementation GPBMessageSignatureProtocol
-@end
diff --git a/objectivec/GPBUtilities_PackagePrivate.h b/objectivec/GPBUtilities_PackagePrivate.h
index 16859d48..c8b21ed7 100644
--- a/objectivec/GPBUtilities_PackagePrivate.h
+++ b/objectivec/GPBUtilities_PackagePrivate.h
@@ -309,7 +309,8 @@ NSString *GPBDecodeTextFormatName(const uint8_t *decodeData, int32_t key,
 
 // A series of selectors that are used solely to get @encoding values
 // for them by the dynamic protobuf runtime code. See
-// GPBMessageEncodingForSelector for details.
+// GPBMessageEncodingForSelector for details. GPBRootObject conforms to
+// the protocol so that it is encoded in the Objective C runtime.
 @protocol GPBMessageSignatureProtocol
 @optional
 
diff --git a/objectivec/ProtocolBuffers_iOS.xcodeproj/project.pbxproj b/objectivec/ProtocolBuffers_iOS.xcodeproj/project.pbxproj
index 1f1172b2..9333ea7d 100644
--- a/objectivec/ProtocolBuffers_iOS.xcodeproj/project.pbxproj
+++ b/objectivec/ProtocolBuffers_iOS.xcodeproj/project.pbxproj
@@ -880,7 +880,6 @@
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
 				FRAMEWORK_SEARCH_PATHS = (
-					"\"$(SDKROOT)/Developer/Library/Frameworks\"",
 					"\"$(DEVELOPER_LIBRARY_DIR)/Frameworks\"",
 					"$(inherited)",
 				);
@@ -916,7 +915,6 @@
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
 				FRAMEWORK_SEARCH_PATHS = (
-					"\"$(SDKROOT)/Developer/Library/Frameworks\"",
 					"\"$(DEVELOPER_LIBRARY_DIR)/Frameworks\"",
 					"$(inherited)",
 				);
diff --git a/objectivec/Tests/GPBCodedInputStreamTests.m b/objectivec/Tests/GPBCodedInputStreamTests.m
index d8e128f7..11f7ceaf 100644
--- a/objectivec/Tests/GPBCodedInputStreamTests.m
+++ b/objectivec/Tests/GPBCodedInputStreamTests.m
@@ -261,7 +261,7 @@
     GPBCodedInputStream* input32 = [GPBCodedInputStream streamWithData:data];
     XCTAssertEqual(value32, [input32 readInt32]);
 
-    int64_t value64 = INT64_MIN | (0x01L << 31);
+    int64_t value64 = INT64_MIN | (0x01LL << 31);
     GPBCodedInputStream* input64 = [GPBCodedInputStream streamWithData:data];
     XCTAssertEqual(value64, [input64 readInt64]);
   }
diff --git a/objectivec/Tests/GPBDictionaryTests+Bool.m b/objectivec/Tests/GPBDictionaryTests+Bool.m
index 0dbe07b6..0af0c815 100644
--- a/objectivec/Tests/GPBDictionaryTests+Bool.m
+++ b/objectivec/Tests/GPBDictionaryTests+Bool.m
@@ -63,7 +63,8 @@
 }
 
 - (void)testOne {
-  GPBBoolUInt32Dictionary *dict = [GPBBoolUInt32Dictionary dictionaryWithUInt32:100U forKey:YES];
+  GPBBoolUInt32Dictionary *dict = [[GPBBoolUInt32Dictionary alloc] init];
+  [dict setUInt32:100U forKey:YES];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint32_t value;
@@ -76,6 +77,7 @@
     XCTAssertEqual(aValue, 100U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -214,17 +216,18 @@
   XCTAssertNotNil(dict);
 
   GPBBoolUInt32Dictionary *dict2 =
-      [GPBBoolUInt32Dictionary dictionaryWithDictionary:dict];
+      [[GPBBoolUInt32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBBoolUInt32Dictionary *dict = [GPBBoolUInt32Dictionary dictionary];
+  GPBBoolUInt32Dictionary *dict = [[GPBBoolUInt32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -249,6 +252,7 @@
   XCTAssertTrue([dict getUInt32:&value forKey:NO]);
   XCTAssertEqual(value, 101U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -364,7 +368,8 @@
 }
 
 - (void)testOne {
-  GPBBoolInt32Dictionary *dict = [GPBBoolInt32Dictionary dictionaryWithInt32:200 forKey:YES];
+  GPBBoolInt32Dictionary *dict = [[GPBBoolInt32Dictionary alloc] init];
+  [dict setInt32:200 forKey:YES];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -377,6 +382,7 @@
     XCTAssertEqual(aValue, 200);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -515,17 +521,18 @@
   XCTAssertNotNil(dict);
 
   GPBBoolInt32Dictionary *dict2 =
-      [GPBBoolInt32Dictionary dictionaryWithDictionary:dict];
+      [[GPBBoolInt32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBBoolInt32Dictionary *dict = [GPBBoolInt32Dictionary dictionary];
+  GPBBoolInt32Dictionary *dict = [[GPBBoolInt32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -550,6 +557,7 @@
   XCTAssertTrue([dict getInt32:&value forKey:NO]);
   XCTAssertEqual(value, 201);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -665,7 +673,8 @@
 }
 
 - (void)testOne {
-  GPBBoolUInt64Dictionary *dict = [GPBBoolUInt64Dictionary dictionaryWithUInt64:300U forKey:YES];
+  GPBBoolUInt64Dictionary *dict = [[GPBBoolUInt64Dictionary alloc] init];
+  [dict setUInt64:300U forKey:YES];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint64_t value;
@@ -678,6 +687,7 @@
     XCTAssertEqual(aValue, 300U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -816,17 +826,18 @@
   XCTAssertNotNil(dict);
 
   GPBBoolUInt64Dictionary *dict2 =
-      [GPBBoolUInt64Dictionary dictionaryWithDictionary:dict];
+      [[GPBBoolUInt64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBBoolUInt64Dictionary *dict = [GPBBoolUInt64Dictionary dictionary];
+  GPBBoolUInt64Dictionary *dict = [[GPBBoolUInt64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -851,6 +862,7 @@
   XCTAssertTrue([dict getUInt64:&value forKey:NO]);
   XCTAssertEqual(value, 301U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -966,7 +978,8 @@
 }
 
 - (void)testOne {
-  GPBBoolInt64Dictionary *dict = [GPBBoolInt64Dictionary dictionaryWithInt64:400 forKey:YES];
+  GPBBoolInt64Dictionary *dict = [[GPBBoolInt64Dictionary alloc] init];
+  [dict setInt64:400 forKey:YES];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int64_t value;
@@ -979,6 +992,7 @@
     XCTAssertEqual(aValue, 400);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1117,17 +1131,18 @@
   XCTAssertNotNil(dict);
 
   GPBBoolInt64Dictionary *dict2 =
-      [GPBBoolInt64Dictionary dictionaryWithDictionary:dict];
+      [[GPBBoolInt64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBBoolInt64Dictionary *dict = [GPBBoolInt64Dictionary dictionary];
+  GPBBoolInt64Dictionary *dict = [[GPBBoolInt64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1152,6 +1167,7 @@
   XCTAssertTrue([dict getInt64:&value forKey:NO]);
   XCTAssertEqual(value, 401);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1267,7 +1283,8 @@
 }
 
 - (void)testOne {
-  GPBBoolBoolDictionary *dict = [GPBBoolBoolDictionary dictionaryWithBool:NO forKey:YES];
+  GPBBoolBoolDictionary *dict = [[GPBBoolBoolDictionary alloc] init];
+  [dict setBool:NO forKey:YES];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   BOOL value;
@@ -1280,6 +1297,7 @@
     XCTAssertEqual(aValue, NO);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1418,17 +1436,18 @@
   XCTAssertNotNil(dict);
 
   GPBBoolBoolDictionary *dict2 =
-      [GPBBoolBoolDictionary dictionaryWithDictionary:dict];
+      [[GPBBoolBoolDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBBoolBoolDictionary *dict = [GPBBoolBoolDictionary dictionary];
+  GPBBoolBoolDictionary *dict = [[GPBBoolBoolDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1453,6 +1472,7 @@
   XCTAssertTrue([dict getBool:&value forKey:NO]);
   XCTAssertEqual(value, YES);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1568,7 +1588,8 @@
 }
 
 - (void)testOne {
-  GPBBoolFloatDictionary *dict = [GPBBoolFloatDictionary dictionaryWithFloat:500.f forKey:YES];
+  GPBBoolFloatDictionary *dict = [[GPBBoolFloatDictionary alloc] init];
+  [dict setFloat:500.f forKey:YES];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   float value;
@@ -1581,6 +1602,7 @@
     XCTAssertEqual(aValue, 500.f);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1719,17 +1741,18 @@
   XCTAssertNotNil(dict);
 
   GPBBoolFloatDictionary *dict2 =
-      [GPBBoolFloatDictionary dictionaryWithDictionary:dict];
+      [[GPBBoolFloatDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBBoolFloatDictionary *dict = [GPBBoolFloatDictionary dictionary];
+  GPBBoolFloatDictionary *dict = [[GPBBoolFloatDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1754,6 +1777,7 @@
   XCTAssertTrue([dict getFloat:&value forKey:NO]);
   XCTAssertEqual(value, 501.f);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1869,7 +1893,8 @@
 }
 
 - (void)testOne {
-  GPBBoolDoubleDictionary *dict = [GPBBoolDoubleDictionary dictionaryWithDouble:600. forKey:YES];
+  GPBBoolDoubleDictionary *dict = [[GPBBoolDoubleDictionary alloc] init];
+  [dict setDouble:600. forKey:YES];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   double value;
@@ -1882,6 +1907,7 @@
     XCTAssertEqual(aValue, 600.);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2020,17 +2046,18 @@
   XCTAssertNotNil(dict);
 
   GPBBoolDoubleDictionary *dict2 =
-      [GPBBoolDoubleDictionary dictionaryWithDictionary:dict];
+      [[GPBBoolDoubleDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBBoolDoubleDictionary *dict = [GPBBoolDoubleDictionary dictionary];
+  GPBBoolDoubleDictionary *dict = [[GPBBoolDoubleDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2055,6 +2082,7 @@
   XCTAssertTrue([dict getDouble:&value forKey:NO]);
   XCTAssertEqual(value, 601.);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2170,7 +2198,8 @@
 }
 
 - (void)testOne {
-  GPBBoolObjectDictionary<NSString*> *dict = [GPBBoolObjectDictionary dictionaryWithObject:@"abc" forKey:YES];
+  GPBBoolObjectDictionary<NSString*> *dict = [[GPBBoolObjectDictionary alloc] init];
+  [dict setObject:@"abc" forKey:YES];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   XCTAssertEqualObjects([dict objectForKey:YES], @"abc");
@@ -2180,6 +2209,7 @@
     XCTAssertEqualObjects(aObject, @"abc");
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2313,17 +2343,18 @@
   XCTAssertNotNil(dict);
 
   GPBBoolObjectDictionary<NSString*> *dict2 =
-      [GPBBoolObjectDictionary dictionaryWithDictionary:dict];
+      [[GPBBoolObjectDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBBoolObjectDictionary<NSString*> *dict = [GPBBoolObjectDictionary dictionary];
+  GPBBoolObjectDictionary<NSString*> *dict = [[GPBBoolObjectDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2343,6 +2374,7 @@
   XCTAssertEqualObjects([dict objectForKey:YES], @"abc");
   XCTAssertEqualObjects([dict objectForKey:NO], @"def");
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
diff --git a/objectivec/Tests/GPBDictionaryTests+Int32.m b/objectivec/Tests/GPBDictionaryTests+Int32.m
index c539bdc2..4ba30203 100644
--- a/objectivec/Tests/GPBDictionaryTests+Int32.m
+++ b/objectivec/Tests/GPBDictionaryTests+Int32.m
@@ -45,7 +45,6 @@
 
 // To let the testing macros work, add some extra methods to simplify things.
 @interface GPBInt32EnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(int32_t)key;
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const int32_t [])keys
                         count:(NSUInteger)count;
@@ -64,14 +63,6 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 @implementation GPBInt32EnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(int32_t)key {
-  // Cast is needed to compiler knows what class we are invoking initWithValues: on to get the
-  // type correct.
-  return [[(GPBInt32EnumDictionary*)[self alloc] initWithValidationFunction:TestingEnum_IsValidValue
-                                                                  rawValues:&value
-                                                                    forKeys:&key
-                                                                      count:1] autorelease];
-}
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const int32_t [])keys
                         count:(NSUInteger)count {
@@ -103,7 +94,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32UInt32Dictionary *dict = [GPBInt32UInt32Dictionary dictionaryWithUInt32:100U forKey:11];
+  GPBInt32UInt32Dictionary *dict = [[GPBInt32UInt32Dictionary alloc] init];
+  [dict setUInt32:100U forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint32_t value;
@@ -116,6 +108,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 100U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -258,17 +251,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32UInt32Dictionary *dict2 =
-      [GPBInt32UInt32Dictionary dictionaryWithDictionary:dict];
+      [[GPBInt32UInt32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32UInt32Dictionary *dict = [GPBInt32UInt32Dictionary dictionary];
+  GPBInt32UInt32Dictionary *dict = [[GPBInt32UInt32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -299,6 +293,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt32:&value forKey:14]);
   XCTAssertEqual(value, 103U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -460,7 +455,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32Int32Dictionary *dict = [GPBInt32Int32Dictionary dictionaryWithInt32:200 forKey:11];
+  GPBInt32Int32Dictionary *dict = [[GPBInt32Int32Dictionary alloc] init];
+  [dict setInt32:200 forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -473,6 +469,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 200);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -615,17 +612,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32Int32Dictionary *dict2 =
-      [GPBInt32Int32Dictionary dictionaryWithDictionary:dict];
+      [[GPBInt32Int32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32Int32Dictionary *dict = [GPBInt32Int32Dictionary dictionary];
+  GPBInt32Int32Dictionary *dict = [[GPBInt32Int32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -656,6 +654,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt32:&value forKey:14]);
   XCTAssertEqual(value, 203);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -817,7 +816,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32UInt64Dictionary *dict = [GPBInt32UInt64Dictionary dictionaryWithUInt64:300U forKey:11];
+  GPBInt32UInt64Dictionary *dict = [[GPBInt32UInt64Dictionary alloc] init];
+  [dict setUInt64:300U forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint64_t value;
@@ -830,6 +830,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 300U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -972,17 +973,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32UInt64Dictionary *dict2 =
-      [GPBInt32UInt64Dictionary dictionaryWithDictionary:dict];
+      [[GPBInt32UInt64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32UInt64Dictionary *dict = [GPBInt32UInt64Dictionary dictionary];
+  GPBInt32UInt64Dictionary *dict = [[GPBInt32UInt64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1013,6 +1015,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt64:&value forKey:14]);
   XCTAssertEqual(value, 303U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1174,7 +1177,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32Int64Dictionary *dict = [GPBInt32Int64Dictionary dictionaryWithInt64:400 forKey:11];
+  GPBInt32Int64Dictionary *dict = [[GPBInt32Int64Dictionary alloc] init];
+  [dict setInt64:400 forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int64_t value;
@@ -1187,6 +1191,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 400);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1329,17 +1334,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32Int64Dictionary *dict2 =
-      [GPBInt32Int64Dictionary dictionaryWithDictionary:dict];
+      [[GPBInt32Int64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32Int64Dictionary *dict = [GPBInt32Int64Dictionary dictionary];
+  GPBInt32Int64Dictionary *dict = [[GPBInt32Int64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1370,6 +1376,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt64:&value forKey:14]);
   XCTAssertEqual(value, 403);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1531,7 +1538,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32BoolDictionary *dict = [GPBInt32BoolDictionary dictionaryWithBool:YES forKey:11];
+  GPBInt32BoolDictionary *dict = [[GPBInt32BoolDictionary alloc] init];
+  [dict setBool:YES forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   BOOL value;
@@ -1544,6 +1552,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, YES);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1686,17 +1695,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32BoolDictionary *dict2 =
-      [GPBInt32BoolDictionary dictionaryWithDictionary:dict];
+      [[GPBInt32BoolDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32BoolDictionary *dict = [GPBInt32BoolDictionary dictionary];
+  GPBInt32BoolDictionary *dict = [[GPBInt32BoolDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1727,6 +1737,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getBool:&value forKey:14]);
   XCTAssertEqual(value, NO);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1888,7 +1899,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32FloatDictionary *dict = [GPBInt32FloatDictionary dictionaryWithFloat:500.f forKey:11];
+  GPBInt32FloatDictionary *dict = [[GPBInt32FloatDictionary alloc] init];
+  [dict setFloat:500.f forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   float value;
@@ -1901,6 +1913,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 500.f);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2043,17 +2056,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32FloatDictionary *dict2 =
-      [GPBInt32FloatDictionary dictionaryWithDictionary:dict];
+      [[GPBInt32FloatDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32FloatDictionary *dict = [GPBInt32FloatDictionary dictionary];
+  GPBInt32FloatDictionary *dict = [[GPBInt32FloatDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2084,6 +2098,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getFloat:&value forKey:14]);
   XCTAssertEqual(value, 503.f);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2245,7 +2260,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32DoubleDictionary *dict = [GPBInt32DoubleDictionary dictionaryWithDouble:600. forKey:11];
+  GPBInt32DoubleDictionary *dict = [[GPBInt32DoubleDictionary alloc] init];
+  [dict setDouble:600. forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   double value;
@@ -2258,6 +2274,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 600.);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2400,17 +2417,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32DoubleDictionary *dict2 =
-      [GPBInt32DoubleDictionary dictionaryWithDictionary:dict];
+      [[GPBInt32DoubleDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32DoubleDictionary *dict = [GPBInt32DoubleDictionary dictionary];
+  GPBInt32DoubleDictionary *dict = [[GPBInt32DoubleDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2441,6 +2459,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getDouble:&value forKey:14]);
   XCTAssertEqual(value, 603.);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2602,7 +2621,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32EnumDictionary *dict = [GPBInt32EnumDictionary dictionaryWithEnum:700 forKey:11];
+  GPBInt32EnumDictionary *dict = [[GPBInt32EnumDictionary alloc] init];
+  [dict setEnum:700 forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -2615,6 +2635,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 700);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2757,17 +2778,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32EnumDictionary *dict2 =
-      [GPBInt32EnumDictionary dictionaryWithDictionary:dict];
+      [[GPBInt32EnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32EnumDictionary *dict = [GPBInt32EnumDictionary dictionary];
+  GPBInt32EnumDictionary *dict = [[GPBInt32EnumDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2798,6 +2820,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getEnum:&value forKey:14]);
   XCTAssertEqual(value, 703);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -3120,19 +3143,20 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32EnumDictionary *dict2 =
-      [GPBInt32EnumDictionary dictionaryWithDictionary:dict];
+      [[GPBInt32EnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
   XCTAssertEqual(dict.validationFunc, dict2.validationFunc);  // Pointer comparison
+  [dict2 release];
   [dict release];
 }
 
 - (void)testUnknownAdds {
   GPBInt32EnumDictionary *dict =
-    [GPBInt32EnumDictionary dictionaryWithValidationFunction:TestingEnum_IsValidValue];
+      [[GPBInt32EnumDictionary alloc] initWithValidationFunction:TestingEnum_IsValidValue];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3172,6 +3196,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getRawValue:&value forKey:14]);
   XCTAssertEqual(value, 803);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testUnknownRemove {
@@ -3375,7 +3400,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt32ObjectDictionary<NSString*> *dict = [GPBInt32ObjectDictionary dictionaryWithObject:@"abc" forKey:11];
+  GPBInt32ObjectDictionary<NSString*> *dict = [[GPBInt32ObjectDictionary alloc] init];
+  [dict setObject:@"abc" forKey:11];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   XCTAssertEqualObjects([dict objectForKey:11], @"abc");
@@ -3385,6 +3411,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqualObjects(aObject, @"abc");
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -3520,17 +3547,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt32ObjectDictionary<NSString*> *dict2 =
-      [GPBInt32ObjectDictionary dictionaryWithDictionary:dict];
+      [[GPBInt32ObjectDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt32ObjectDictionary<NSString*> *dict = [GPBInt32ObjectDictionary dictionary];
+  GPBInt32ObjectDictionary<NSString*> *dict = [[GPBInt32ObjectDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3552,6 +3580,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertEqualObjects([dict objectForKey:13], @"ghi");
   XCTAssertEqualObjects([dict objectForKey:14], @"jkl");
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
diff --git a/objectivec/Tests/GPBDictionaryTests+Int64.m b/objectivec/Tests/GPBDictionaryTests+Int64.m
index b90cdf8c..966024b7 100644
--- a/objectivec/Tests/GPBDictionaryTests+Int64.m
+++ b/objectivec/Tests/GPBDictionaryTests+Int64.m
@@ -45,7 +45,6 @@
 
 // To let the testing macros work, add some extra methods to simplify things.
 @interface GPBInt64EnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(int64_t)key;
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const int64_t [])keys
                         count:(NSUInteger)count;
@@ -64,14 +63,6 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 @implementation GPBInt64EnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(int64_t)key {
-  // Cast is needed to compiler knows what class we are invoking initWithValues: on to get the
-  // type correct.
-  return [[(GPBInt64EnumDictionary*)[self alloc] initWithValidationFunction:TestingEnum_IsValidValue
-                                                                  rawValues:&value
-                                                                    forKeys:&key
-                                                                      count:1] autorelease];
-}
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const int64_t [])keys
                         count:(NSUInteger)count {
@@ -103,7 +94,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64UInt32Dictionary *dict = [GPBInt64UInt32Dictionary dictionaryWithUInt32:100U forKey:21LL];
+  GPBInt64UInt32Dictionary *dict = [[GPBInt64UInt32Dictionary alloc] init];
+  [dict setUInt32:100U forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint32_t value;
@@ -116,6 +108,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 100U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -258,17 +251,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64UInt32Dictionary *dict2 =
-      [GPBInt64UInt32Dictionary dictionaryWithDictionary:dict];
+      [[GPBInt64UInt32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64UInt32Dictionary *dict = [GPBInt64UInt32Dictionary dictionary];
+  GPBInt64UInt32Dictionary *dict = [[GPBInt64UInt32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -299,6 +293,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt32:&value forKey:24LL]);
   XCTAssertEqual(value, 103U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -460,7 +455,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64Int32Dictionary *dict = [GPBInt64Int32Dictionary dictionaryWithInt32:200 forKey:21LL];
+  GPBInt64Int32Dictionary *dict = [[GPBInt64Int32Dictionary alloc] init];
+  [dict setInt32:200 forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -473,6 +469,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 200);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -615,17 +612,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64Int32Dictionary *dict2 =
-      [GPBInt64Int32Dictionary dictionaryWithDictionary:dict];
+      [[GPBInt64Int32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64Int32Dictionary *dict = [GPBInt64Int32Dictionary dictionary];
+  GPBInt64Int32Dictionary *dict = [[GPBInt64Int32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -656,6 +654,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt32:&value forKey:24LL]);
   XCTAssertEqual(value, 203);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -817,7 +816,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64UInt64Dictionary *dict = [GPBInt64UInt64Dictionary dictionaryWithUInt64:300U forKey:21LL];
+  GPBInt64UInt64Dictionary *dict = [[GPBInt64UInt64Dictionary alloc] init];
+  [dict setUInt64:300U forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint64_t value;
@@ -830,6 +830,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 300U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -972,17 +973,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64UInt64Dictionary *dict2 =
-      [GPBInt64UInt64Dictionary dictionaryWithDictionary:dict];
+      [[GPBInt64UInt64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64UInt64Dictionary *dict = [GPBInt64UInt64Dictionary dictionary];
+  GPBInt64UInt64Dictionary *dict = [[GPBInt64UInt64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1013,6 +1015,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt64:&value forKey:24LL]);
   XCTAssertEqual(value, 303U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1174,7 +1177,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64Int64Dictionary *dict = [GPBInt64Int64Dictionary dictionaryWithInt64:400 forKey:21LL];
+  GPBInt64Int64Dictionary *dict = [[GPBInt64Int64Dictionary alloc] init];
+  [dict setInt64:400 forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int64_t value;
@@ -1187,6 +1191,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 400);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1329,17 +1334,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64Int64Dictionary *dict2 =
-      [GPBInt64Int64Dictionary dictionaryWithDictionary:dict];
+      [[GPBInt64Int64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64Int64Dictionary *dict = [GPBInt64Int64Dictionary dictionary];
+  GPBInt64Int64Dictionary *dict = [[GPBInt64Int64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1370,6 +1376,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt64:&value forKey:24LL]);
   XCTAssertEqual(value, 403);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1531,7 +1538,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64BoolDictionary *dict = [GPBInt64BoolDictionary dictionaryWithBool:YES forKey:21LL];
+  GPBInt64BoolDictionary *dict = [[GPBInt64BoolDictionary alloc] init];
+  [dict setBool:YES forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   BOOL value;
@@ -1544,6 +1552,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, YES);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1686,17 +1695,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64BoolDictionary *dict2 =
-      [GPBInt64BoolDictionary dictionaryWithDictionary:dict];
+      [[GPBInt64BoolDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64BoolDictionary *dict = [GPBInt64BoolDictionary dictionary];
+  GPBInt64BoolDictionary *dict = [[GPBInt64BoolDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1727,6 +1737,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getBool:&value forKey:24LL]);
   XCTAssertEqual(value, NO);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1888,7 +1899,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64FloatDictionary *dict = [GPBInt64FloatDictionary dictionaryWithFloat:500.f forKey:21LL];
+  GPBInt64FloatDictionary *dict = [[GPBInt64FloatDictionary alloc] init];
+  [dict setFloat:500.f forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   float value;
@@ -1901,6 +1913,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 500.f);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2043,17 +2056,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64FloatDictionary *dict2 =
-      [GPBInt64FloatDictionary dictionaryWithDictionary:dict];
+      [[GPBInt64FloatDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64FloatDictionary *dict = [GPBInt64FloatDictionary dictionary];
+  GPBInt64FloatDictionary *dict = [[GPBInt64FloatDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2084,6 +2098,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getFloat:&value forKey:24LL]);
   XCTAssertEqual(value, 503.f);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2245,7 +2260,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64DoubleDictionary *dict = [GPBInt64DoubleDictionary dictionaryWithDouble:600. forKey:21LL];
+  GPBInt64DoubleDictionary *dict = [[GPBInt64DoubleDictionary alloc] init];
+  [dict setDouble:600. forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   double value;
@@ -2258,6 +2274,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 600.);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2400,17 +2417,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64DoubleDictionary *dict2 =
-      [GPBInt64DoubleDictionary dictionaryWithDictionary:dict];
+      [[GPBInt64DoubleDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64DoubleDictionary *dict = [GPBInt64DoubleDictionary dictionary];
+  GPBInt64DoubleDictionary *dict = [[GPBInt64DoubleDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2441,6 +2459,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getDouble:&value forKey:24LL]);
   XCTAssertEqual(value, 603.);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2602,7 +2621,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64EnumDictionary *dict = [GPBInt64EnumDictionary dictionaryWithEnum:700 forKey:21LL];
+  GPBInt64EnumDictionary *dict = [[GPBInt64EnumDictionary alloc] init];
+  [dict setEnum:700 forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -2615,6 +2635,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 700);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2757,17 +2778,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64EnumDictionary *dict2 =
-      [GPBInt64EnumDictionary dictionaryWithDictionary:dict];
+      [[GPBInt64EnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64EnumDictionary *dict = [GPBInt64EnumDictionary dictionary];
+  GPBInt64EnumDictionary *dict = [[GPBInt64EnumDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2798,6 +2820,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getEnum:&value forKey:24LL]);
   XCTAssertEqual(value, 703);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -3120,19 +3143,20 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64EnumDictionary *dict2 =
-      [GPBInt64EnumDictionary dictionaryWithDictionary:dict];
+      [[GPBInt64EnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
   XCTAssertEqual(dict.validationFunc, dict2.validationFunc);  // Pointer comparison
+  [dict2 release];
   [dict release];
 }
 
 - (void)testUnknownAdds {
   GPBInt64EnumDictionary *dict =
-    [GPBInt64EnumDictionary dictionaryWithValidationFunction:TestingEnum_IsValidValue];
+      [[GPBInt64EnumDictionary alloc] initWithValidationFunction:TestingEnum_IsValidValue];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3172,6 +3196,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getRawValue:&value forKey:24LL]);
   XCTAssertEqual(value, 803);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testUnknownRemove {
@@ -3375,7 +3400,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBInt64ObjectDictionary<NSString*> *dict = [GPBInt64ObjectDictionary dictionaryWithObject:@"abc" forKey:21LL];
+  GPBInt64ObjectDictionary<NSString*> *dict = [[GPBInt64ObjectDictionary alloc] init];
+  [dict setObject:@"abc" forKey:21LL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   XCTAssertEqualObjects([dict objectForKey:21LL], @"abc");
@@ -3385,6 +3411,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqualObjects(aObject, @"abc");
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -3520,17 +3547,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBInt64ObjectDictionary<NSString*> *dict2 =
-      [GPBInt64ObjectDictionary dictionaryWithDictionary:dict];
+      [[GPBInt64ObjectDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBInt64ObjectDictionary<NSString*> *dict = [GPBInt64ObjectDictionary dictionary];
+  GPBInt64ObjectDictionary<NSString*> *dict = [[GPBInt64ObjectDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3552,6 +3580,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertEqualObjects([dict objectForKey:23LL], @"ghi");
   XCTAssertEqualObjects([dict objectForKey:24LL], @"jkl");
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
diff --git a/objectivec/Tests/GPBDictionaryTests+String.m b/objectivec/Tests/GPBDictionaryTests+String.m
index 5df1d51d..82d7952b 100644
--- a/objectivec/Tests/GPBDictionaryTests+String.m
+++ b/objectivec/Tests/GPBDictionaryTests+String.m
@@ -45,7 +45,6 @@
 
 // To let the testing macros work, add some extra methods to simplify things.
 @interface GPBStringEnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(NSString *)key;
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const NSString * [])keys
                         count:(NSUInteger)count;
@@ -64,14 +63,6 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 @implementation GPBStringEnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(NSString *)key {
-  // Cast is needed to compiler knows what class we are invoking initWithValues: on to get the
-  // type correct.
-  return [[(GPBStringEnumDictionary*)[self alloc] initWithValidationFunction:TestingEnum_IsValidValue
-                                                                   rawValues:&value
-                                                                     forKeys:&key
-                                                                       count:1] autorelease];
-}
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const NSString * [])keys
                         count:(NSUInteger)count {
@@ -103,7 +94,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBStringUInt32Dictionary *dict = [GPBStringUInt32Dictionary dictionaryWithUInt32:100U forKey:@"foo"];
+  GPBStringUInt32Dictionary *dict = [[GPBStringUInt32Dictionary alloc] init];
+  [dict setUInt32:100U forKey:@"foo"];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint32_t value;
@@ -116,6 +108,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 100U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -258,17 +251,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringUInt32Dictionary *dict2 =
-      [GPBStringUInt32Dictionary dictionaryWithDictionary:dict];
+      [[GPBStringUInt32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBStringUInt32Dictionary *dict = [GPBStringUInt32Dictionary dictionary];
+  GPBStringUInt32Dictionary *dict = [[GPBStringUInt32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -299,6 +293,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt32:&value forKey:@"mumble"]);
   XCTAssertEqual(value, 103U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -460,7 +455,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBStringInt32Dictionary *dict = [GPBStringInt32Dictionary dictionaryWithInt32:200 forKey:@"foo"];
+  GPBStringInt32Dictionary *dict = [[GPBStringInt32Dictionary alloc] init];
+  [dict setInt32:200 forKey:@"foo"];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -473,6 +469,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 200);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -615,17 +612,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringInt32Dictionary *dict2 =
-      [GPBStringInt32Dictionary dictionaryWithDictionary:dict];
+      [[GPBStringInt32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBStringInt32Dictionary *dict = [GPBStringInt32Dictionary dictionary];
+  GPBStringInt32Dictionary *dict = [[GPBStringInt32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -656,6 +654,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt32:&value forKey:@"mumble"]);
   XCTAssertEqual(value, 203);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -817,7 +816,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBStringUInt64Dictionary *dict = [GPBStringUInt64Dictionary dictionaryWithUInt64:300U forKey:@"foo"];
+  GPBStringUInt64Dictionary *dict = [[GPBStringUInt64Dictionary alloc] init];
+  [dict setUInt64:300U forKey:@"foo"];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint64_t value;
@@ -830,6 +830,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 300U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -972,17 +973,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringUInt64Dictionary *dict2 =
-      [GPBStringUInt64Dictionary dictionaryWithDictionary:dict];
+      [[GPBStringUInt64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBStringUInt64Dictionary *dict = [GPBStringUInt64Dictionary dictionary];
+  GPBStringUInt64Dictionary *dict = [[GPBStringUInt64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1013,6 +1015,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt64:&value forKey:@"mumble"]);
   XCTAssertEqual(value, 303U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1174,7 +1177,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBStringInt64Dictionary *dict = [GPBStringInt64Dictionary dictionaryWithInt64:400 forKey:@"foo"];
+  GPBStringInt64Dictionary *dict = [[GPBStringInt64Dictionary alloc] init];
+  [dict setInt64:400 forKey:@"foo"];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int64_t value;
@@ -1187,6 +1191,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 400);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1329,17 +1334,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringInt64Dictionary *dict2 =
-      [GPBStringInt64Dictionary dictionaryWithDictionary:dict];
+      [[GPBStringInt64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBStringInt64Dictionary *dict = [GPBStringInt64Dictionary dictionary];
+  GPBStringInt64Dictionary *dict = [[GPBStringInt64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1370,6 +1376,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt64:&value forKey:@"mumble"]);
   XCTAssertEqual(value, 403);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1531,7 +1538,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBStringBoolDictionary *dict = [GPBStringBoolDictionary dictionaryWithBool:YES forKey:@"foo"];
+  GPBStringBoolDictionary *dict = [[GPBStringBoolDictionary alloc] init];
+  [dict setBool:YES forKey:@"foo"];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   BOOL value;
@@ -1544,6 +1552,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, YES);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1686,17 +1695,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringBoolDictionary *dict2 =
-      [GPBStringBoolDictionary dictionaryWithDictionary:dict];
+      [[GPBStringBoolDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBStringBoolDictionary *dict = [GPBStringBoolDictionary dictionary];
+  GPBStringBoolDictionary *dict = [[GPBStringBoolDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1727,6 +1737,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getBool:&value forKey:@"mumble"]);
   XCTAssertEqual(value, NO);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1888,7 +1899,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBStringFloatDictionary *dict = [GPBStringFloatDictionary dictionaryWithFloat:500.f forKey:@"foo"];
+  GPBStringFloatDictionary *dict = [[GPBStringFloatDictionary alloc] init];
+  [dict setFloat:500.f forKey:@"foo"];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   float value;
@@ -1901,6 +1913,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 500.f);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2043,17 +2056,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringFloatDictionary *dict2 =
-      [GPBStringFloatDictionary dictionaryWithDictionary:dict];
+      [[GPBStringFloatDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBStringFloatDictionary *dict = [GPBStringFloatDictionary dictionary];
+  GPBStringFloatDictionary *dict = [[GPBStringFloatDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2084,6 +2098,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getFloat:&value forKey:@"mumble"]);
   XCTAssertEqual(value, 503.f);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2245,7 +2260,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBStringDoubleDictionary *dict = [GPBStringDoubleDictionary dictionaryWithDouble:600. forKey:@"foo"];
+  GPBStringDoubleDictionary *dict = [[GPBStringDoubleDictionary alloc] init];
+  [dict setDouble:600. forKey:@"foo"];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   double value;
@@ -2258,6 +2274,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 600.);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2400,17 +2417,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringDoubleDictionary *dict2 =
-      [GPBStringDoubleDictionary dictionaryWithDictionary:dict];
+      [[GPBStringDoubleDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBStringDoubleDictionary *dict = [GPBStringDoubleDictionary dictionary];
+  GPBStringDoubleDictionary *dict = [[GPBStringDoubleDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2441,6 +2459,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getDouble:&value forKey:@"mumble"]);
   XCTAssertEqual(value, 603.);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2602,7 +2621,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBStringEnumDictionary *dict = [GPBStringEnumDictionary dictionaryWithEnum:700 forKey:@"foo"];
+  GPBStringEnumDictionary *dict = [[GPBStringEnumDictionary alloc] init];
+  [dict setEnum:700 forKey:@"foo"];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -2615,6 +2635,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 700);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2757,17 +2778,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringEnumDictionary *dict2 =
-      [GPBStringEnumDictionary dictionaryWithDictionary:dict];
+      [[GPBStringEnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBStringEnumDictionary *dict = [GPBStringEnumDictionary dictionary];
+  GPBStringEnumDictionary *dict = [[GPBStringEnumDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2798,6 +2820,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getEnum:&value forKey:@"mumble"]);
   XCTAssertEqual(value, 703);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -3120,19 +3143,20 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBStringEnumDictionary *dict2 =
-      [GPBStringEnumDictionary dictionaryWithDictionary:dict];
+      [[GPBStringEnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
   XCTAssertEqual(dict.validationFunc, dict2.validationFunc);  // Pointer comparison
+  [dict2 release];
   [dict release];
 }
 
 - (void)testUnknownAdds {
   GPBStringEnumDictionary *dict =
-    [GPBStringEnumDictionary dictionaryWithValidationFunction:TestingEnum_IsValidValue];
+      [[GPBStringEnumDictionary alloc] initWithValidationFunction:TestingEnum_IsValidValue];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3172,6 +3196,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getRawValue:&value forKey:@"mumble"]);
   XCTAssertEqual(value, 803);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testUnknownRemove {
diff --git a/objectivec/Tests/GPBDictionaryTests+UInt32.m b/objectivec/Tests/GPBDictionaryTests+UInt32.m
index 1d3f6f78..5314c58a 100644
--- a/objectivec/Tests/GPBDictionaryTests+UInt32.m
+++ b/objectivec/Tests/GPBDictionaryTests+UInt32.m
@@ -45,7 +45,6 @@
 
 // To let the testing macros work, add some extra methods to simplify things.
 @interface GPBUInt32EnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(uint32_t)key;
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const uint32_t [])keys
                         count:(NSUInteger)count;
@@ -64,14 +63,6 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 @implementation GPBUInt32EnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(uint32_t)key {
-  // Cast is needed to compiler knows what class we are invoking initWithValues: on to get the
-  // type correct.
-  return [[(GPBUInt32EnumDictionary*)[self alloc] initWithValidationFunction:TestingEnum_IsValidValue
-                                                                   rawValues:&value
-                                                                     forKeys:&key
-                                                                       count:1] autorelease];
-}
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const uint32_t [])keys
                         count:(NSUInteger)count {
@@ -103,7 +94,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32UInt32Dictionary *dict = [GPBUInt32UInt32Dictionary dictionaryWithUInt32:100U forKey:1U];
+  GPBUInt32UInt32Dictionary *dict = [[GPBUInt32UInt32Dictionary alloc] init];
+  [dict setUInt32:100U forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint32_t value;
@@ -116,6 +108,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 100U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -258,17 +251,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32UInt32Dictionary *dict2 =
-      [GPBUInt32UInt32Dictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32UInt32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32UInt32Dictionary *dict = [GPBUInt32UInt32Dictionary dictionary];
+  GPBUInt32UInt32Dictionary *dict = [[GPBUInt32UInt32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -299,6 +293,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt32:&value forKey:4U]);
   XCTAssertEqual(value, 103U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -460,7 +455,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32Int32Dictionary *dict = [GPBUInt32Int32Dictionary dictionaryWithInt32:200 forKey:1U];
+  GPBUInt32Int32Dictionary *dict = [[GPBUInt32Int32Dictionary alloc] init];
+  [dict setInt32:200 forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -473,6 +469,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 200);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -615,17 +612,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32Int32Dictionary *dict2 =
-      [GPBUInt32Int32Dictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32Int32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32Int32Dictionary *dict = [GPBUInt32Int32Dictionary dictionary];
+  GPBUInt32Int32Dictionary *dict = [[GPBUInt32Int32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -656,6 +654,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt32:&value forKey:4U]);
   XCTAssertEqual(value, 203);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -817,7 +816,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32UInt64Dictionary *dict = [GPBUInt32UInt64Dictionary dictionaryWithUInt64:300U forKey:1U];
+  GPBUInt32UInt64Dictionary *dict = [[GPBUInt32UInt64Dictionary alloc] init];
+  [dict setUInt64:300U forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint64_t value;
@@ -830,6 +830,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 300U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -972,17 +973,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32UInt64Dictionary *dict2 =
-      [GPBUInt32UInt64Dictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32UInt64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32UInt64Dictionary *dict = [GPBUInt32UInt64Dictionary dictionary];
+  GPBUInt32UInt64Dictionary *dict = [[GPBUInt32UInt64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1013,6 +1015,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt64:&value forKey:4U]);
   XCTAssertEqual(value, 303U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1174,7 +1177,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32Int64Dictionary *dict = [GPBUInt32Int64Dictionary dictionaryWithInt64:400 forKey:1U];
+  GPBUInt32Int64Dictionary *dict = [[GPBUInt32Int64Dictionary alloc] init];
+  [dict setInt64:400 forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int64_t value;
@@ -1187,6 +1191,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 400);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1329,17 +1334,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32Int64Dictionary *dict2 =
-      [GPBUInt32Int64Dictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32Int64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32Int64Dictionary *dict = [GPBUInt32Int64Dictionary dictionary];
+  GPBUInt32Int64Dictionary *dict = [[GPBUInt32Int64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1370,6 +1376,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt64:&value forKey:4U]);
   XCTAssertEqual(value, 403);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1531,7 +1538,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32BoolDictionary *dict = [GPBUInt32BoolDictionary dictionaryWithBool:YES forKey:1U];
+  GPBUInt32BoolDictionary *dict = [[GPBUInt32BoolDictionary alloc] init];
+  [dict setBool:YES forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   BOOL value;
@@ -1544,6 +1552,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, YES);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1686,17 +1695,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32BoolDictionary *dict2 =
-      [GPBUInt32BoolDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32BoolDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32BoolDictionary *dict = [GPBUInt32BoolDictionary dictionary];
+  GPBUInt32BoolDictionary *dict = [[GPBUInt32BoolDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1727,6 +1737,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getBool:&value forKey:4U]);
   XCTAssertEqual(value, NO);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1888,7 +1899,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32FloatDictionary *dict = [GPBUInt32FloatDictionary dictionaryWithFloat:500.f forKey:1U];
+  GPBUInt32FloatDictionary *dict = [[GPBUInt32FloatDictionary alloc] init];
+  [dict setFloat:500.f forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   float value;
@@ -1901,6 +1913,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 500.f);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2043,17 +2056,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32FloatDictionary *dict2 =
-      [GPBUInt32FloatDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32FloatDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32FloatDictionary *dict = [GPBUInt32FloatDictionary dictionary];
+  GPBUInt32FloatDictionary *dict = [[GPBUInt32FloatDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2084,6 +2098,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getFloat:&value forKey:4U]);
   XCTAssertEqual(value, 503.f);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2245,7 +2260,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32DoubleDictionary *dict = [GPBUInt32DoubleDictionary dictionaryWithDouble:600. forKey:1U];
+  GPBUInt32DoubleDictionary *dict = [[GPBUInt32DoubleDictionary alloc] init];
+  [dict setDouble:600. forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   double value;
@@ -2258,6 +2274,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 600.);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2400,17 +2417,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32DoubleDictionary *dict2 =
-      [GPBUInt32DoubleDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32DoubleDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32DoubleDictionary *dict = [GPBUInt32DoubleDictionary dictionary];
+  GPBUInt32DoubleDictionary *dict = [[GPBUInt32DoubleDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2441,6 +2459,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getDouble:&value forKey:4U]);
   XCTAssertEqual(value, 603.);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2602,7 +2621,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32EnumDictionary *dict = [GPBUInt32EnumDictionary dictionaryWithEnum:700 forKey:1U];
+  GPBUInt32EnumDictionary *dict = [[GPBUInt32EnumDictionary alloc] init];
+  [dict setEnum:700 forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -2615,6 +2635,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 700);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2757,17 +2778,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32EnumDictionary *dict2 =
-      [GPBUInt32EnumDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32EnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32EnumDictionary *dict = [GPBUInt32EnumDictionary dictionary];
+  GPBUInt32EnumDictionary *dict = [[GPBUInt32EnumDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2798,6 +2820,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getEnum:&value forKey:4U]);
   XCTAssertEqual(value, 703);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -3120,19 +3143,20 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32EnumDictionary *dict2 =
-      [GPBUInt32EnumDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32EnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
   XCTAssertEqual(dict.validationFunc, dict2.validationFunc);  // Pointer comparison
+  [dict2 release];
   [dict release];
 }
 
 - (void)testUnknownAdds {
   GPBUInt32EnumDictionary *dict =
-    [GPBUInt32EnumDictionary dictionaryWithValidationFunction:TestingEnum_IsValidValue];
+      [[GPBUInt32EnumDictionary alloc] initWithValidationFunction:TestingEnum_IsValidValue];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3172,6 +3196,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getRawValue:&value forKey:4U]);
   XCTAssertEqual(value, 803);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testUnknownRemove {
@@ -3375,7 +3400,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt32ObjectDictionary<NSString*> *dict = [GPBUInt32ObjectDictionary dictionaryWithObject:@"abc" forKey:1U];
+  GPBUInt32ObjectDictionary<NSString*> *dict = [[GPBUInt32ObjectDictionary alloc] init];
+  [dict setObject:@"abc" forKey:1U];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   XCTAssertEqualObjects([dict objectForKey:1U], @"abc");
@@ -3385,6 +3411,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqualObjects(aObject, @"abc");
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -3520,17 +3547,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt32ObjectDictionary<NSString*> *dict2 =
-      [GPBUInt32ObjectDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt32ObjectDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt32ObjectDictionary<NSString*> *dict = [GPBUInt32ObjectDictionary dictionary];
+  GPBUInt32ObjectDictionary<NSString*> *dict = [[GPBUInt32ObjectDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3552,6 +3580,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertEqualObjects([dict objectForKey:3U], @"ghi");
   XCTAssertEqualObjects([dict objectForKey:4U], @"jkl");
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
diff --git a/objectivec/Tests/GPBDictionaryTests+UInt64.m b/objectivec/Tests/GPBDictionaryTests+UInt64.m
index 94c116f6..ccd063f5 100644
--- a/objectivec/Tests/GPBDictionaryTests+UInt64.m
+++ b/objectivec/Tests/GPBDictionaryTests+UInt64.m
@@ -45,7 +45,6 @@
 
 // To let the testing macros work, add some extra methods to simplify things.
 @interface GPBUInt64EnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(uint64_t)key;
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const uint64_t [])keys
                         count:(NSUInteger)count;
@@ -64,14 +63,6 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 @implementation GPBUInt64EnumDictionary (TestingTweak)
-+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(uint64_t)key {
-  // Cast is needed to compiler knows what class we are invoking initWithValues: on to get the
-  // type correct.
-  return [[(GPBUInt64EnumDictionary*)[self alloc] initWithValidationFunction:TestingEnum_IsValidValue
-                                                                   rawValues:&value
-                                                                     forKeys:&key
-                                                                       count:1] autorelease];
-}
 - (instancetype)initWithEnums:(const int32_t [])values
                       forKeys:(const uint64_t [])keys
                         count:(NSUInteger)count {
@@ -103,7 +94,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64UInt32Dictionary *dict = [GPBUInt64UInt32Dictionary dictionaryWithUInt32:100U forKey:31ULL];
+  GPBUInt64UInt32Dictionary *dict = [[GPBUInt64UInt32Dictionary alloc] init];
+  [dict setUInt32:100U forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint32_t value;
@@ -116,6 +108,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 100U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -258,17 +251,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64UInt32Dictionary *dict2 =
-      [GPBUInt64UInt32Dictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64UInt32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64UInt32Dictionary *dict = [GPBUInt64UInt32Dictionary dictionary];
+  GPBUInt64UInt32Dictionary *dict = [[GPBUInt64UInt32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -299,6 +293,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt32:&value forKey:34ULL]);
   XCTAssertEqual(value, 103U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -460,7 +455,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64Int32Dictionary *dict = [GPBUInt64Int32Dictionary dictionaryWithInt32:200 forKey:31ULL];
+  GPBUInt64Int32Dictionary *dict = [[GPBUInt64Int32Dictionary alloc] init];
+  [dict setInt32:200 forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -473,6 +469,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 200);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -615,17 +612,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64Int32Dictionary *dict2 =
-      [GPBUInt64Int32Dictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64Int32Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64Int32Dictionary *dict = [GPBUInt64Int32Dictionary dictionary];
+  GPBUInt64Int32Dictionary *dict = [[GPBUInt64Int32Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -656,6 +654,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt32:&value forKey:34ULL]);
   XCTAssertEqual(value, 203);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -817,7 +816,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64UInt64Dictionary *dict = [GPBUInt64UInt64Dictionary dictionaryWithUInt64:300U forKey:31ULL];
+  GPBUInt64UInt64Dictionary *dict = [[GPBUInt64UInt64Dictionary alloc] init];
+  [dict setUInt64:300U forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   uint64_t value;
@@ -830,6 +830,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 300U);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -972,17 +973,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64UInt64Dictionary *dict2 =
-      [GPBUInt64UInt64Dictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64UInt64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64UInt64Dictionary *dict = [GPBUInt64UInt64Dictionary dictionary];
+  GPBUInt64UInt64Dictionary *dict = [[GPBUInt64UInt64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1013,6 +1015,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getUInt64:&value forKey:34ULL]);
   XCTAssertEqual(value, 303U);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1174,7 +1177,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64Int64Dictionary *dict = [GPBUInt64Int64Dictionary dictionaryWithInt64:400 forKey:31ULL];
+  GPBUInt64Int64Dictionary *dict = [[GPBUInt64Int64Dictionary alloc] init];
+  [dict setInt64:400 forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int64_t value;
@@ -1187,6 +1191,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 400);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1329,17 +1334,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64Int64Dictionary *dict2 =
-      [GPBUInt64Int64Dictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64Int64Dictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64Int64Dictionary *dict = [GPBUInt64Int64Dictionary dictionary];
+  GPBUInt64Int64Dictionary *dict = [[GPBUInt64Int64Dictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1370,6 +1376,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getInt64:&value forKey:34ULL]);
   XCTAssertEqual(value, 403);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1531,7 +1538,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64BoolDictionary *dict = [GPBUInt64BoolDictionary dictionaryWithBool:YES forKey:31ULL];
+  GPBUInt64BoolDictionary *dict = [[GPBUInt64BoolDictionary alloc] init];
+  [dict setBool:YES forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   BOOL value;
@@ -1544,6 +1552,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, YES);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -1686,17 +1695,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64BoolDictionary *dict2 =
-      [GPBUInt64BoolDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64BoolDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64BoolDictionary *dict = [GPBUInt64BoolDictionary dictionary];
+  GPBUInt64BoolDictionary *dict = [[GPBUInt64BoolDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -1727,6 +1737,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getBool:&value forKey:34ULL]);
   XCTAssertEqual(value, NO);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -1888,7 +1899,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64FloatDictionary *dict = [GPBUInt64FloatDictionary dictionaryWithFloat:500.f forKey:31ULL];
+  GPBUInt64FloatDictionary *dict = [[GPBUInt64FloatDictionary alloc] init];
+  [dict setFloat:500.f forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   float value;
@@ -1901,6 +1913,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 500.f);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2043,17 +2056,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64FloatDictionary *dict2 =
-      [GPBUInt64FloatDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64FloatDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64FloatDictionary *dict = [GPBUInt64FloatDictionary dictionary];
+  GPBUInt64FloatDictionary *dict = [[GPBUInt64FloatDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2084,6 +2098,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getFloat:&value forKey:34ULL]);
   XCTAssertEqual(value, 503.f);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2245,7 +2260,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64DoubleDictionary *dict = [GPBUInt64DoubleDictionary dictionaryWithDouble:600. forKey:31ULL];
+  GPBUInt64DoubleDictionary *dict = [[GPBUInt64DoubleDictionary alloc] init];
+  [dict setDouble:600. forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   double value;
@@ -2258,6 +2274,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 600.);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2400,17 +2417,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64DoubleDictionary *dict2 =
-      [GPBUInt64DoubleDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64DoubleDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64DoubleDictionary *dict = [GPBUInt64DoubleDictionary dictionary];
+  GPBUInt64DoubleDictionary *dict = [[GPBUInt64DoubleDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2441,6 +2459,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getDouble:&value forKey:34ULL]);
   XCTAssertEqual(value, 603.);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -2602,7 +2621,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64EnumDictionary *dict = [GPBUInt64EnumDictionary dictionaryWithEnum:700 forKey:31ULL];
+  GPBUInt64EnumDictionary *dict = [[GPBUInt64EnumDictionary alloc] init];
+  [dict setEnum:700 forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   int32_t value;
@@ -2615,6 +2635,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqual(aValue, 700);
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -2757,17 +2778,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64EnumDictionary *dict2 =
-      [GPBUInt64EnumDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64EnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64EnumDictionary *dict = [GPBUInt64EnumDictionary dictionary];
+  GPBUInt64EnumDictionary *dict = [[GPBUInt64EnumDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -2798,6 +2820,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getEnum:&value forKey:34ULL]);
   XCTAssertEqual(value, 703);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
@@ -3120,19 +3143,20 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64EnumDictionary *dict2 =
-      [GPBUInt64EnumDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64EnumDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
   XCTAssertEqual(dict.validationFunc, dict2.validationFunc);  // Pointer comparison
+  [dict2 release];
   [dict release];
 }
 
 - (void)testUnknownAdds {
   GPBUInt64EnumDictionary *dict =
-    [GPBUInt64EnumDictionary dictionaryWithValidationFunction:TestingEnum_IsValidValue];
+      [[GPBUInt64EnumDictionary alloc] initWithValidationFunction:TestingEnum_IsValidValue];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3172,6 +3196,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertTrue([dict getRawValue:&value forKey:34ULL]);
   XCTAssertEqual(value, 803);
   [dict2 release];
+  [dict release];
 }
 
 - (void)testUnknownRemove {
@@ -3375,7 +3400,8 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
 }
 
 - (void)testOne {
-  GPBUInt64ObjectDictionary<NSString*> *dict = [GPBUInt64ObjectDictionary dictionaryWithObject:@"abc" forKey:31ULL];
+  GPBUInt64ObjectDictionary<NSString*> *dict = [[GPBUInt64ObjectDictionary alloc] init];
+  [dict setObject:@"abc" forKey:31ULL];
   XCTAssertNotNil(dict);
   XCTAssertEqual(dict.count, 1U);
   XCTAssertEqualObjects([dict objectForKey:31ULL], @"abc");
@@ -3385,6 +3411,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
     XCTAssertEqualObjects(aObject, @"abc");
     XCTAssertNotEqual(stop, NULL);
   }];
+  [dict release];
 }
 
 - (void)testBasics {
@@ -3520,17 +3547,18 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertNotNil(dict);
 
   GPBUInt64ObjectDictionary<NSString*> *dict2 =
-      [GPBUInt64ObjectDictionary dictionaryWithDictionary:dict];
+      [[GPBUInt64ObjectDictionary alloc] initWithDictionary:dict];
   XCTAssertNotNil(dict2);
 
   // Should be new pointer, but equal objects.
   XCTAssertNotEqual(dict, dict2);
   XCTAssertEqualObjects(dict, dict2);
+  [dict2 release];
   [dict release];
 }
 
 - (void)testAdds {
-  GPBUInt64ObjectDictionary<NSString*> *dict = [GPBUInt64ObjectDictionary dictionary];
+  GPBUInt64ObjectDictionary<NSString*> *dict = [[GPBUInt64ObjectDictionary alloc] init];
   XCTAssertNotNil(dict);
 
   XCTAssertEqual(dict.count, 0U);
@@ -3552,6 +3580,7 @@ static BOOL TestingEnum_IsValidValue(int32_t value) {
   XCTAssertEqualObjects([dict objectForKey:33ULL], @"ghi");
   XCTAssertEqualObjects([dict objectForKey:34ULL], @"jkl");
   [dict2 release];
+  [dict release];
 }
 
 - (void)testRemove {
diff --git a/objectivec/Tests/GPBDictionaryTests.pddm b/objectivec/Tests/GPBDictionaryTests.pddm
index d6aa7211..17f12c28 100644
--- a/objectivec/Tests/GPBDictionaryTests.pddm
+++ b/objectivec/Tests/GPBDictionaryTests.pddm
@@ -78,7 +78,8 @@
 //%}
 //%
 //%- (void)testOne {
-//%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict = [GPB##KEY_NAME##VALUE_NAME##Dictionary dictionaryWith##VALUE_NAME$u##:VAL1 forKey:KEY1];
+//%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict = [[GPB##KEY_NAME##VALUE_NAME##Dictionary alloc] init];
+//%  [dict set##VALUE_NAME$u##:VAL1 forKey:KEY1];
 //%  XCTAssertNotNil(dict);
 //%  XCTAssertEqual(dict.count, 1U);
 //%DECLARE_VALUE_STORAGE##VHELPER(VALUE_TYPE, VNAME)TEST_VALUE##VHELPER(VALUE_NAME, dict, VNAME, KEY1, VAL1)
@@ -88,6 +89,7 @@
 //%    XCTAssertEqual##VSUFFIX(a##VNAME$u, VAL1);
 //%    XCTAssertNotEqual(stop, NULL);
 //%  }];
+//%  [dict release];
 //%}
 //%
 //%- (void)testBasics {
@@ -223,17 +225,18 @@
 //%  XCTAssertNotNil(dict);
 //%
 //%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict2 =
-//%      [GPB##KEY_NAME##VALUE_NAME##Dictionary dictionaryWithDictionary:dict];
+//%      [[GPB##KEY_NAME##VALUE_NAME##Dictionary alloc] initWithDictionary:dict];
 //%  XCTAssertNotNil(dict2);
 //%
 //%  // Should be new pointer, but equal objects.
 //%  XCTAssertNotEqual(dict, dict2);
 //%  XCTAssertEqualObjects(dict, dict2);
+//%  [dict2 release];
 //%  [dict release];
 //%}
 //%
 //%- (void)testAdds {
-//%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict = [GPB##KEY_NAME##VALUE_NAME##Dictionary dictionary];
+//%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict = [[GPB##KEY_NAME##VALUE_NAME##Dictionary alloc] init];
 //%  XCTAssertNotNil(dict);
 //%
 //%  XCTAssertEqual(dict.count, 0U);
@@ -255,6 +258,7 @@
 //%TEST_VALUE##VHELPER(VALUE_NAME, dict, VNAME, KEY3, VAL3)
 //%TEST_VALUE##VHELPER(VALUE_NAME, dict, VNAME, KEY4, VAL4)
 //%  [dict2 release];
+//%  [dict release];
 //%}
 //%
 //%- (void)testRemove {
@@ -522,19 +526,20 @@
 //%  XCTAssertNotNil(dict);
 //%
 //%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict2 =
-//%      [GPB##KEY_NAME##VALUE_NAME##Dictionary dictionaryWithDictionary:dict];
+//%      [[GPB##KEY_NAME##VALUE_NAME##Dictionary alloc] initWithDictionary:dict];
 //%  XCTAssertNotNil(dict2);
 //%
 //%  // Should be new pointer, but equal objects.
 //%  XCTAssertNotEqual(dict, dict2);
 //%  XCTAssertEqualObjects(dict, dict2);
 //%  XCTAssertEqual(dict.validationFunc, dict2.validationFunc);  // Pointer comparison
+//%  [dict2 release];
 //%  [dict release];
 //%}
 //%
 //%- (void)testUnknownAdds {
 //%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict =
-//%    [GPB##KEY_NAME##VALUE_NAME##Dictionary dictionaryWithValidationFunction:TestingEnum_IsValidValue];
+//%      [[GPB##KEY_NAME##VALUE_NAME##Dictionary alloc] initWithValidationFunction:TestingEnum_IsValidValue];
 //%  XCTAssertNotNil(dict);
 //%
 //%  XCTAssertEqual(dict.count, 0U);
@@ -561,6 +566,7 @@
 //%TEST_VALUE##VHELPER(VALUE_NAME, dict, value, KEY4, kGPBUnrecognizedEnumeratorValue)
 //%TEST_RAW_VALUE##VHELPER(dict, value, KEY4, VAL4)
 //%  [dict2 release];
+//%  [dict release];
 //%}
 //%
 //%- (void)testUnknownRemove {
@@ -729,7 +735,6 @@
 //%PDDM-DEFINE TEST_HELPERS(KEY_NAME, KEY_TYPE, KisP)
 //%// To let the testing macros work, add some extra methods to simplify things.
 //%@interface GPB##KEY_NAME##EnumDictionary (TestingTweak)
-//%+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(KEY_TYPE##KisP$S##KisP)key;
 //%- (instancetype)initWithEnums:(const int32_t [])values
 //%                      forKeys:(const KEY_TYPE##KisP$S##KisP [])keys
 //%                        count:(NSUInteger)count;
@@ -748,14 +753,6 @@
 //%}
 //%
 //%@implementation GPB##KEY_NAME##EnumDictionary (TestingTweak)
-//%+ (instancetype)dictionaryWithEnum:(int32_t)value forKey:(KEY_TYPE##KisP$S##KisP)key {
-//%  // Cast is needed to compiler knows what class we are invoking initWithValues: on to get the
-//%  // type correct.
-//%  return [[(GPB##KEY_NAME##EnumDictionary*)[self alloc] initWithValidationFunction:TestingEnum_IsValidValue
-//%                KEY_NAME$S                                             rawValues:&value
-//%                KEY_NAME$S                                               forKeys:&key
-//%                KEY_NAME$S                                                 count:1] autorelease];
-//%}
 //%- (instancetype)initWithEnums:(const int32_t [])values
 //%                      forKeys:(const KEY_TYPE##KisP$S##KisP [])keys
 //%                        count:(NSUInteger)count {
@@ -801,7 +798,8 @@
 //%}
 //%
 //%- (void)testOne {
-//%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict = [GPB##KEY_NAME##VALUE_NAME##Dictionary dictionaryWith##VALUE_NAME$u##:VAL1 forKey:KEY1];
+//%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict = [[GPB##KEY_NAME##VALUE_NAME##Dictionary alloc] init];
+//%  [dict set##VALUE_NAME$u##:VAL1 forKey:KEY1];
 //%  XCTAssertNotNil(dict);
 //%  XCTAssertEqual(dict.count, 1U);
 //%DECLARE_VALUE_STORAGE##VHELPER(VALUE_TYPE, VNAME)TEST_VALUE##VHELPER(VALUE_NAME, dict, VNAME, KEY1, VAL1)
@@ -811,6 +809,7 @@
 //%    XCTAssertEqual##VSUFFIX(a##VNAME$u, VAL1);
 //%    XCTAssertNotEqual(stop, NULL);
 //%  }];
+//%  [dict release];
 //%}
 //%
 //%- (void)testBasics {
@@ -944,17 +943,18 @@
 //%  XCTAssertNotNil(dict);
 //%
 //%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict2 =
-//%      [GPB##KEY_NAME##VALUE_NAME##Dictionary dictionaryWithDictionary:dict];
+//%      [[GPB##KEY_NAME##VALUE_NAME##Dictionary alloc] initWithDictionary:dict];
 //%  XCTAssertNotNil(dict2);
 //%
 //%  // Should be new pointer, but equal objects.
 //%  XCTAssertNotEqual(dict, dict2);
 //%  XCTAssertEqualObjects(dict, dict2);
+//%  [dict2 release];
 //%  [dict release];
 //%}
 //%
 //%- (void)testAdds {
-//%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict = [GPB##KEY_NAME##VALUE_NAME##Dictionary dictionary];
+//%  DICTIONARY_CLASS_DECL##VHELPER(KEY_NAME, VALUE_NAME, VALUE_TYPE) *dict = [[GPB##KEY_NAME##VALUE_NAME##Dictionary alloc] init];
 //%  XCTAssertNotNil(dict);
 //%
 //%  XCTAssertEqual(dict.count, 0U);
@@ -974,6 +974,7 @@
 //%DECLARE_VALUE_STORAGE##VHELPER(VALUE_TYPE, VNAME)TEST_VALUE##VHELPER(VALUE_NAME, dict, VNAME, KEY1, VAL1)
 //%TEST_VALUE##VHELPER(VALUE_NAME, dict, VNAME, KEY2, VAL2)
 //%  [dict2 release];
+//%  [dict release];
 //%}
 //%
 //%- (void)testRemove {
diff --git a/objectivec/Tests/GPBMessageTests+Serialization.m b/objectivec/Tests/GPBMessageTests+Serialization.m
index 55d77a1f..921feab7 100644
--- a/objectivec/Tests/GPBMessageTests+Serialization.m
+++ b/objectivec/Tests/GPBMessageTests+Serialization.m
@@ -1114,10 +1114,10 @@
 - (void)testMap_Proto2UnknownEnum {
   TestEnumMapPlusExtra *orig = [[TestEnumMapPlusExtra alloc] init];
 
-  orig.knownMapField = [GPBInt32EnumDictionary
-      dictionaryWithValidationFunction:Proto2MapEnumPlusExtra_IsValidValue];
-  orig.unknownMapField = [GPBInt32EnumDictionary
-      dictionaryWithValidationFunction:Proto2MapEnumPlusExtra_IsValidValue];
+  orig.knownMapField = [[[GPBInt32EnumDictionary alloc]
+      initWithValidationFunction:Proto2MapEnumPlusExtra_IsValidValue] autorelease];
+  orig.unknownMapField = [[[GPBInt32EnumDictionary alloc]
+      initWithValidationFunction:Proto2MapEnumPlusExtra_IsValidValue] autorelease];
   [orig.knownMapField setEnum:Proto2MapEnumPlusExtra_EProto2MapEnumFoo
                        forKey:0];
   [orig.unknownMapField setEnum:Proto2MapEnumPlusExtra_EProto2MapEnumExtra
diff --git a/objectivec/Tests/GPBMessageTests.m b/objectivec/Tests/GPBMessageTests.m
index c15535c5..4d75f1e1 100644
--- a/objectivec/Tests/GPBMessageTests.m
+++ b/objectivec/Tests/GPBMessageTests.m
@@ -1238,7 +1238,8 @@
   // with different objects that are equal).
   TestRecursiveMessageWithRepeatedField *message3 =
       [TestRecursiveMessageWithRepeatedField message];
-  message3.iToI = [GPBInt32Int32Dictionary dictionaryWithInt32:10 forKey:20];
+  message3.iToI = [[[GPBInt32Int32Dictionary alloc] init] autorelease];
+  [message3.iToI setInt32:10 forKey:20];
   message3.strToStr =
       [NSMutableDictionary dictionaryWithObject:@"abc" forKey:@"123"];
   XCTAssertNotNil(message.iToI);
@@ -1323,7 +1324,8 @@
     XCTAssertFalse([message hasA]);
     GPBInt32Int32Dictionary *iToI = [message.a.iToI retain];
     XCTAssertEqual(iToI->_autocreator, message.a);  // Pointer comparision
-    message.a.iToI = [GPBInt32Int32Dictionary dictionaryWithInt32:6 forKey:7];
+    message.a.iToI = [[[GPBInt32Int32Dictionary alloc] init] autorelease];
+    [message.a.iToI setInt32:6 forKey:7];
     XCTAssertTrue([message hasA]);
     XCTAssertNotEqual(message.a.iToI, iToI);  // Pointer comparision
     XCTAssertNil(iToI->_autocreator);
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/Contents.json b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/Contents.json
index 0cbf9acc..9f4a9e59 100644
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/Contents.json
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -1,72 +1,103 @@
 {
   "images" : [
     {
+      "size" : "20x20",
       "idiom" : "iphone",
+      "filename" : "appicon_40.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "appicon_60.png",
+      "scale" : "3x"
+    },
+    {
       "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "appicon_29.png",
       "scale" : "1x"
     },
     {
-      "idiom" : "iphone",
       "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "appicon_58.png",
       "scale" : "2x"
     },
     {
-      "idiom" : "iphone",
       "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "appicon_87.png",
       "scale" : "3x"
     },
     {
-      "idiom" : "iphone",
       "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "appicon_80.png",
       "scale" : "2x"
     },
     {
-      "idiom" : "iphone",
       "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "appicon_120.png",
       "scale" : "3x"
     },
     {
-      "size" : "57x57",
       "idiom" : "iphone",
-      "filename" : "iPhone6.png",
+      "size" : "57x57",
       "scale" : "1x"
     },
     {
-      "size" : "57x57",
       "idiom" : "iphone",
-      "filename" : "iPhone6_2x.png",
+      "size" : "57x57",
       "scale" : "2x"
     },
     {
       "size" : "60x60",
       "idiom" : "iphone",
-      "filename" : "iPhone7_2x.png",
+      "filename" : "appicon_120.png",
       "scale" : "2x"
     },
     {
       "size" : "60x60",
       "idiom" : "iphone",
-      "filename" : "iPhone7_3x.png",
+      "filename" : "appicon_180.png",
       "scale" : "3x"
     },
     {
+      "size" : "20x20",
       "idiom" : "ipad",
-      "size" : "29x29",
+      "filename" : "appicon_20.png",
       "scale" : "1x"
     },
     {
+      "size" : "20x20",
       "idiom" : "ipad",
-      "size" : "29x29",
+      "filename" : "appicon_40.png",
       "scale" : "2x"
     },
     {
+      "size" : "29x29",
       "idiom" : "ipad",
-      "size" : "40x40",
+      "filename" : "appicon_29.png",
       "scale" : "1x"
     },
     {
+      "size" : "29x29",
       "idiom" : "ipad",
+      "filename" : "appicon_58.png",
+      "scale" : "2x"
+    },
+    {
       "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "appicon_40.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "appicon_80.png",
       "scale" : "2x"
     },
     {
@@ -80,32 +111,37 @@
       "scale" : "2x"
     },
     {
-      "size" : "72x72",
       "idiom" : "ipad",
-      "filename" : "iPad6.png",
+      "size" : "72x72",
       "scale" : "1x"
     },
     {
-      "size" : "72x72",
       "idiom" : "ipad",
-      "filename" : "iPad6_2x.png",
+      "size" : "72x72",
       "scale" : "2x"
     },
     {
       "size" : "76x76",
       "idiom" : "ipad",
-      "filename" : "iPad7.png",
+      "filename" : "appicon_76.png",
       "scale" : "1x"
     },
     {
       "size" : "76x76",
       "idiom" : "ipad",
-      "filename" : "iPad7_2x.png",
+      "filename" : "appicon_152.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "appicon_167.png",
       "scale" : "2x"
     },
     {
-      "idiom" : "car",
-      "size" : "120x120",
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "appicon_1024.png",
       "scale" : "1x"
     }
   ],
@@ -113,4 +149,4 @@
     "version" : 1,
     "author" : "xcode"
   }
-}
+}
\ No newline at end of file
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_1024.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_1024.png
new file mode 100644
index 00000000..6b6a102e
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_1024.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_120.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_120.png
new file mode 100644
index 00000000..1bac2e58
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_120.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_152.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_152.png
new file mode 100644
index 00000000..80f13301
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_152.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_167.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_167.png
new file mode 100644
index 00000000..99f0745e
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_167.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_180.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_180.png
new file mode 100644
index 00000000..ae123712
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_180.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_20.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_20.png
new file mode 100644
index 00000000..8e530c49
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_20.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_29.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_29.png
new file mode 100644
index 00000000..1826feb9
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_29.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_40.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_40.png
new file mode 100644
index 00000000..f2e2ded1
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_40.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_58.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_58.png
new file mode 100644
index 00000000..0ec6d003
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_58.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_60.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_60.png
new file mode 100644
index 00000000..8664e8b0
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_60.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_76.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_76.png
new file mode 100644
index 00000000..d4bb05b9
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_76.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_80.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_80.png
new file mode 100644
index 00000000..8fa6a8e7
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_80.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_87.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_87.png
new file mode 100644
index 00000000..b41bc67b
--- /dev/null
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/appicon_87.png
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad6.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad6.png
deleted file mode 100644
index 43da2ee4..00000000
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad6.png
+++ /dev/null
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad6_2x.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad6_2x.png
deleted file mode 100644
index 2ec93704..00000000
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad6_2x.png
+++ /dev/null
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad7.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad7.png
deleted file mode 100644
index aec8bc1b..00000000
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad7.png
+++ /dev/null
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad7_2x.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad7_2x.png
deleted file mode 100644
index e39cc3e7..00000000
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPad7_2x.png
+++ /dev/null
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone6.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone6.png
deleted file mode 100644
index 5572d79f..00000000
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone6.png
+++ /dev/null
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone6_2x.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone6_2x.png
deleted file mode 100644
index 2424997f..00000000
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone6_2x.png
+++ /dev/null
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone7_2x.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone7_2x.png
deleted file mode 100644
index 10bfc3cf..00000000
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone7_2x.png
+++ /dev/null
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone7_3x.png b/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone7_3x.png
deleted file mode 100644
index 8d16f14d..00000000
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/AppIcon.appiconset/iPhone7_3x.png
+++ /dev/null
diff --git a/objectivec/Tests/iOSTestHarness/Images.xcassets/LaunchImage.launchimage/Contents.json b/objectivec/Tests/iOSTestHarness/Images.xcassets/LaunchImage.launchimage/Contents.json
index 5a296668..a0ad363c 100644
--- a/objectivec/Tests/iOSTestHarness/Images.xcassets/LaunchImage.launchimage/Contents.json
+++ b/objectivec/Tests/iOSTestHarness/Images.xcassets/LaunchImage.launchimage/Contents.json
@@ -3,43 +3,30 @@
     {
       "orientation" : "portrait",
       "idiom" : "ipad",
-      "minimum-system-version" : "7.0",
       "extent" : "full-screen",
-      "scale" : "2x"
-    },
-    {
-      "orientation" : "landscape",
-      "idiom" : "ipad",
       "minimum-system-version" : "7.0",
-      "extent" : "full-screen",
       "scale" : "1x"
     },
     {
       "orientation" : "landscape",
       "idiom" : "ipad",
-      "minimum-system-version" : "7.0",
       "extent" : "full-screen",
-      "scale" : "2x"
-    },
-    {
-      "orientation" : "portrait",
-      "idiom" : "iphone",
       "minimum-system-version" : "7.0",
-      "scale" : "2x"
+      "scale" : "1x"
     },
     {
       "orientation" : "portrait",
-      "idiom" : "iphone",
+      "idiom" : "ipad",
+      "extent" : "full-screen",
       "minimum-system-version" : "7.0",
-      "subtype" : "retina4",
       "scale" : "2x"
     },
     {
-      "orientation" : "portrait",
+      "orientation" : "landscape",
       "idiom" : "ipad",
-      "minimum-system-version" : "7.0",
       "extent" : "full-screen",
-      "scale" : "1x"
+      "minimum-system-version" : "7.0",
+      "scale" : "2x"
     }
   ],
   "info" : {