Protocol Buffers v3.19.2

Java

• Improve performance characteristics of UnknownFieldSet parsing (#9371)
• This release addresses a Security Advisory for Java users

Protocol Buffers v3.18.2

Java

• Improve performance characteristics of UnknownFieldSet parsing (#9371)

Protocol Buffers v3.16.1

Java

• Improve performance characteristics of UnknownFieldSet parsing (#9371)

Protocol Buffers v3.19.1

Bazel

• Ensure that release archives contain everything needed for Bazel (#9131)
• Align dependency handling with Bazel best practices (#9165)

JavaScript

• Fix ReferenceError: window is not defined when getting the global object (#9156)

Ruby

• Fix memory leak in MessageClass.encode (#9150)

Protocol Buffers v3.19.0

C++

• Make proto2::Message::DiscardUnknownFields() non-virtual
• Separate RepeatedPtrField into its own header file
• For default floating point values of 0, consider all bits significant
• cmake: support MSVC_RUNTIME_LIBRARY property (#8851)
• Fix shadowing warnings (#8926)
• Fix for issue #8484, constant initialization doesn't compile in msvc clang-cl environment (#8993)
• Fix build on AIX and SunOS (#8373) (#9065)
• Add Android stlport and default toolchains to BUILD. (#8290)

Java

• For default floating point values of 0, consider all bits significant
• Annotate //java/com/google/protobuf/util/... with nullness annotations
• Use ArrayList copy constructor (#7853)

Kotlin

• Switch Kotlin proto DSLs to be implemented with inline value classes
• Fixing inlining and deprecation for repeated string fields (#9120)

Python

• Proto2 DecodeError now includes message name in error message
• Make MessageToDict convert map keys to strings (#8122)
• Add python-requires in setup.py (#8989)
• Add python 3.10 (#9034)

JavaScript

• Skip exports if not available by CommonJS (#8856)
• JS: Comply with CSP no-unsafe-eval. (#8864)

PHP

• Added "object" as a reserved name for PHP (#8962)

Ruby

• Override Map.clone to use Map's dup method (#7938)
• Ruby: build extensions for arm64-darwin (#8232)
• Add class method Timestamp.from_time to ruby well known types (#8562)
• Adopt pure ruby DSL implementation for JRuby (#9047)
• Add size to Map class (#8068)
• Fix for descriptor_pb.rb: google/protobuf should be required first (#9121)

C#

• Correctly set ExtensionRegistry when parsing with MessageParser, but using an already existing CodedInputStream (#7246)
• [C#] Make FieldDescriptor propertyName public (#7642)

Protocol Buffers v3.19.0-rc2

Java

• Update changelog to reflect that we are not yet dropping Java 7 support after all

Protocol Buffers v3.19.0-rc1

C++

• Make proto2::Message::DiscardUnknownFields() non-virtual
• Separate RepeatedPtrField into its own header file
• For default floating point values of 0, consider all bits significant
• cmake: support MSVC_RUNTIME_LIBRARY property (#8851)
• Fix shadowing warnings (#8926)
• Fix for issue #8484, constant initialization doesn't compile in msvc clang-cl environment (#8993)
• Fix build on AIX and SunOS (#8373) (#9065)
• Add Android stlport and default toolchains to BUILD. (#8290)

Java

• This release drops support for Java 7. Use 3.18.x if you still need Java 7 support.
• For default floating point values of 0, consider all bits significant
• Annotate //java/com/google/protobuf/util/... with nullness annotations
• Use ArrayList copy constructor (#7853)

Kotlin

• Switch Kotlin proto DSLs to be implemented with inline value classes

Python

• Proto2 DecodeError now includes message name in error message
• Make MessageToDict convert map keys to strings (#8122)
• Add python-requires in setup.py (#8989)
• Add python 3.10 (#9034)

JavaScript

• Skip exports if not available by CommonJS (#8856)
• JS: Comply with CSP no-unsafe-eval. (#8864)

PHP

• Added "object" as a reserved name for PHP (#8962)

Ruby

• Override Map.clone to use Map's dup method (#7938)
• Ruby: build extensions for arm64-darwin (#8232)
• Add class method Timestamp.from_time to ruby well known types (#8562)
• Adopt pure ruby DSL implementation for JRuby (#9047)
• Add size to Map class (#8068)

C#

• Correctly set ExtensionRegistry when parsing with MessageParser, but using an already existing CodedInputStream (#7246)
• [C#] Make FieldDescriptor propertyName public (#7642)

Protocol Buffers v3.18.1

Python

• Update setup.py to reflect that we now require at least Python 3.5 (#8989)
• Performance fix for DynamicMessage: force GetRaw() to be inlined (#9023)

Ruby

• Update ruby_generator.cc to allow proto2 imports in proto3 (#9003)

Protocol Buffers v3.18.0

C++

• Fix warnings raised by clang 11 (#8664)
• Make StringPiece constructible from std::string_view (#8707)
• Add missing capability attributes for LLVM 12 (#8714)
• Stop using std::iterator (deprecated in C++17). (#8741)
• Move field_access_listener from libprotobuf-lite to libprotobuf (#8775)
• Fix #7047 Safely handle setlocale (#8735)
• Remove deprecated version of SetTotalBytesLimit() (#8794)
• Support arena allocation of google::protobuf::AnyMetadata (#8758)
• Fix undefined symbol error around SharedCtor() (#8827)
• Fix default value of enum(int) in json_util with proto2 (#8835)
• Better Smaller ByteSizeLong
• Introduce event filters for inject_field_listener_events
• Reduce memory usage of DescriptorPool
• For lazy fields copy serialized form when allowed.
• Re-introduce the InlinedStringField class
• v2 access listener
• Reduce padding in the proto's ExtensionRegistry map.
• GetExtension performance optimizations
• Make tracker a static variable rather than call static functions
• Support extensions in field access listener
• Annotate MergeFrom for field access listener
• Fix incomplete types for field access listener
• Add map_entry/new_map_entry to SpecificField in MessageDifferencer. They
  record the map items which are different in MessageDifferencer's reporter.
• Reduce binary size due to fieldless proto messages
• TextFormat: ParseInfoTree supports getting field end location in addition to
  start.
• Fix repeated enum extension size in field listener
• Enable Any Text Expansion for Descriptors::DebugString()
• Switch from int{8,16,32,64} to int{8,16,32,64}_t

Java

• Fix errorprone conflict (#8723)
• Removing deprecated TimeUtil class. (#8749)
• Optimized FieldDescriptor.valueOf() to avoid array copying.
• Removing deprecated TimeUtil class.
• Add Durations.parseUnchecked(String) and Timestamps.parseUnchecked(String)
• FieldMaskUtil: Add convenience method to mask the fields out of a given proto.

JavaScript

• Optimize binary parsing of repeated float64
• Fix for optimization when reading doubles from binary wire format
• Replace toArray implementation with toJSON.

PHP

• Migrate PHP & Ruby to ABSL wyhash (#8854)
• Added support for PHP 8.1 (currently in RC1) to the C extension (#8964)
• Fixed PHP SEGV when constructing messages from a destructor. (#8969)

Ruby

• Move DSL implementation from C to pure Ruby (#8850)
• Fixed a memory bug with RepeatedField#+. (#8970)

Python

• Drops support for 2.7 and 3.5.

Other

• [csharp] ByteString.CreateCodedInput should use ArraySegment offset and count (#8740)
• [ObjC] Add support for using the proto package to prefix symbols. (#8760)
• field_presence.md: fix Go example (#8788)

Protocol Buffers v3.18.0-rc2

C++

• Fix warnings raised by clang 11 (#8664)
• Make StringPiece constructible from std::string_view (#8707)
• Add missing capability attributes for LLVM 12 (#8714)
• Stop using std::iterator (deprecated in C++17). (#8741)
• Move field_access_listener from libprotobuf-lite to libprotobuf (#8775)
• Fix #7047 Safely handle setlocale (#8735)
• Remove deprecated version of SetTotalBytesLimit() (#8794)
• Support arena allocation of google::protobuf::AnyMetadata (#8758)
• Fix undefined symbol error around SharedCtor() (#8827)
• Fix default value of enum(int) in json_util with proto2 (#8835)
• Better Smaller ByteSizeLong
• Introduce event filters for inject_field_listener_events
• Reduce memory usage of DescriptorPool
• For lazy fields copy serialized form when allowed.
• Re-introduce the InlinedStringField class
• v2 access listener
• Reduce padding in the proto's ExtensionRegistry map.
• GetExtension performance optimizations
• Make tracker a static variable rather than call static functions
• Support extensions in field access listener
• Annotate MergeFrom for field access listener
• Fix incomplete types for field access listener
• Add map_entry/new_map_entry to SpecificField in MessageDifferencer. They
  record the map items which are different in MessageDifferencer's reporter.
• Reduce binary size due to fieldless proto messages
• TextFormat: ParseInfoTree supports getting field end location in addition to
  start.
• Fix repeated enum extension size in field listener
• Enable Any Text Expansion for Descriptors::DebugString()
• Switch from int{8,16,32,64} to int{8,16,32,64}_t

Java

• Fix errorprone conflict (#8723)
• Removing deprecated TimeUtil class. (#8749)
• Optimized FieldDescriptor.valueOf() to avoid array copying.
• Removing deprecated TimeUtil class.
• Add Durations.parseUnchecked(String) and Timestamps.parseUnchecked(String)
• FieldMaskUtil: Add convenience method to mask the fields out of a given proto.

JavaScript

• Optimize binary parsing of repeated float64
• Fix for optimization when reading doubles from binary wire format
• Replace toArray implementation with toJSON.

PHP

• Migrate PHP & Ruby to ABSL wyhash (#8854)

Ruby

• Move DSL implementation from C to pure Ruby (#8850)

Python

• Drops support for 2.7 and 3.5.

Other

• [csharp] ByteString.CreateCodedInput should use ArraySegment offset and count (#8740)
• [ObjC] Add support for using the proto package to prefix symbols. (#8760)
• field_presence.md: fix Go example (#8788)