Protocol Buffers v23.1

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

Compiler

• Add a workaround for GCC constexpr bug (67ecdde)

C++

• Add a workaround for GCC constexpr bug (67ecdde)

Csharp

• [C#] Replace regex that validates descriptor names (#12174) (0ced986)

Protocol Buffers v22.5

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

C++

• Fix: avoid warnings on MSVC (#12697) (4483f10)
• Fix: avoid warnings on Windows (#12701) (a1435ad)
• Add missing cstdint header (9daf5fb)
• Fix: missing -DPROTOBUF_USE_DLLS in pkg-config (#12700) (18fae1c)
• Avoid using string(JOIN..., which requires cmake 3.12 (0ce610e)
• Explicitly include GTest package in examples (5191c3b)
• Bump Abseil submodule to 20230125.3 (#12660) (2880a20)

Protocol Buffers v23.0

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

Compiler

• Implement a retain_options flag in protoc. (83507c7)
• Make protoc --descriptor_set_out respect option retention (ae2531d)
• Modify release artifacts for protoc to statically link system libraries. (723bd4c)
• Extension declaration: Enforce that if the extension range has a declaration then all extensions in that range must be declared. This should prevent non-declared extensions from being added. (5dc171f)
• Implement "reserved" for extension declaration. (41287bd)
• Open-source extension declaration definition. (145900f)

C++

• Fix(libprotoc): export useful symbols from .so (46fb4aa)
• Turn off clang::musttail on i386 (b40633f)
• Fixes Clang 6 linker bug (49bb3f2)
• Remove PROTOBUF_DEPRECATED in favor of [[deprecated]]. (5c59290)
• Add assert to the list of keywords for C++. (a75c1a2)
• Added Reflection::GetCord() method in C++ (6ecb5d0)
• Support C++ protobuf ctype=CORD for bytes field (generated code). (714f975)
• Expand LazySerializerEmitter to cover proto3 cases. (fab7f92)
• Unconditionally generate unknown field accessors. (dd8a3cf)
• Introduce proto filter for inject_field_listener_events. (2dc5338)
• Add ParseFromCord to TextFormat (055a6c6)
• Mark proto2::Arena::GetArena as deprecated. (9f95958)

Java

• Adds Timestamps.now(). (295f112)
• Added Reflection::GetCord() method in C++ (6ecb5d0)
• Re-attach OSGI headers to lite,core, and util. This information was dropped in the move from maven to bazel. (4b5652b)
• Add Java FileDescriptor.copyHeadingTo() which copies file-level settings (e.g. syntax, package, file options) to FileDescriptorProto.Builder (6e6d0bc)
• Remove unnecessary has bits from proto2 Java. (c440da9)
• Add casts to make protobuf compatible with Java 1.8 runtime. (d40aadf)
• Fix mutability bug in Java proto lite: sub-messages inside of oneofs were not (fa82155)
• Document known quirks of EnumDescriptor::is_closed() when importing across files with different syntaxes. (1de344f)

Kotlin

• Remove errorprone dependency from kotlin protos. (7b6e828)

Csharp

• Make json_name take priority over name (fully) in C# parsing (#12262) (4326e0f)
• Add C# presence methods to proto3 oneof fields. (affadac)

Objective-C

• Enforce the max message size when serializing to binary form. (e6d01b2)
• Mark mergeFromData:extensionRegistry: as deprecated. (e3b0051)

Python

• Fix bug in _internal_copy_files where the rule would fail in downstream repositories. (b36c392)
• Make numpy/pip_deps a test-only dependency. (fe038fc)
• Fix Python bug with required fields (579f4ab)
• Mark deprecated SupportsUnknownEnumValues on Message reflection. Use FieldDescriptor or EnumDescriptor instead. (0b9134b)
• Raise warnings for MessageFactory class usages (dd9dd86)
• Add Python support for retention attribute (63389c0)
• Document known quirks of EnumDescriptor::is_closed() when importing across files with different syntaxes. (1de344f)

Python C-Extension (Default)

• Fix Python bug with required fields (protocolbuffers/upb@ea4cb79)
• See also UPB changes below, which may affect Python C-Extension (Default).

PHP

• RepeatedField: unset by index (#11425) (363fa89)

PHP C-Extension

• RepeatedField: unset by index (#11425) (363fa89)
• See also UPB changes below, which may affect PHP C-Extension.

Ruby

• Change the Ruby code generator to emit a serialized proto instead of the DSL (#12319) (bd52d04)
• Feat(6178): emit ruby enum as integer (#11673) (8aa2b17)

Ruby C-Extension

• Feat(6178): emit ruby enum as integer (#11673) (8aa2b17)
• Ruby: Implement Write Barriers (#11793) (d82d8a4)
• See also UPB changes below, which may affect Ruby C-Extension.

UPB (Python/PHP/Ruby C-Extension)

• Implements upb_Message_DeepClone. (protocolbuffers/upb@3286f94)

Other

• Fix: missing -DPROTOBUF_USE_DLLS in pkg-config (#12700) (1ca4e9c)
• Avoid using string(JOIN..., which requires cmake 3.12 (54caf40)
• Bump Abseil submodule to 20230125.3 (#12660) (750a6e7)
• Fix btree issue in map tests. (9898418)
• Fix declared dependencies for pkg-config (#12518) (f79e35c)
• Fix build for newlib (#12501) (945bf3c)
• Update usage disclaimer on FieldOptions.ctype (b8e7192)
• Add config option to print 64-bit integers in JSON as unquoted ints if they can be losslessly converted into a 64-bit float. (330e10d)
• Version protoc according to the compiler version number. (e67136d)
• Fix shared object ABI exports (#5144) (#11032) (462964e)
• Ensure VarintParseSlowArm{32,64} are exported with PROTOBUF_EXPORT (2ce5639)
• Update the min required CMake version to 3.10 (bcb20bb)

Protocol Buffers v23.0-rc3

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

C++

• Fix(libprotoc): export useful symbols from .so (46fb4aa)
• Turn off clang::musttail on i386 (b40633f)

Python

• Fix bug in _internal_copy_files where the rule would fail in downstream repositories. (b36c392)

Other

• Bump Abseil submodule to 20230125.3 (#12660) (750a6e7)

Protocol Buffers v22.4

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

C++

• Fix libprotoc: export useful symbols from .so (860fbf1)
• Fix btree issue in map tests. (d379c08)

Python

• Fix bug in _internal_copy_files where the rule would fail in downstream repositories. (859410b)

Other

• Bump utf8_range to version with working pkg-config (#12584) (b05ee4f)
• Fix declared dependencies for pkg-config (2c55945)
• Update abseil dependency and reorder dependencies to ensure we use the version specified in protobuf_deps. (99529a2)
• Turn off clang::musttail on i386 (5381f40)

Protocol Buffers v23.0-rc2

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

C++

• Fixes Clang 6 linker bug (49bb3f2)

General

• Replace previous breaking changes in 23.0-rc1 with deprecation warnings. (db1d3f8)

Protocol Buffers v23.0-rc1 (Incomplete)

Announcements

• This RC was abandoned before artifact publishing due to unintended breaking changes:
  • [Cpp] lock down visibility for FileDescriptor syntax APIs. (8b1be51)
  • [Java] Lock down visibility for FileDescriptor.getSyntax(). (8c8b2be)
  • [Ruby] Lock down visibility for FileDescriptor.getSyntax(). (8c8b2be)
• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

Compiler

• Implement a retain_options flag in protoc. (83507c7)
• Make protoc --descriptor_set_out respect option retention (ae2531d)
• Modify release artifacts for protoc to statically link system libraries. (723bd4c)
• Extension declaration: Enforce that if the extension range has a declaration then all extensions in that range must be declared. This should prevent non-declared extensions from being added. (5dc171f)
• Implement "reserved" for extension declaration. (41287bd)
• Open-source extension declaration definition. (145900f)

C++

• Breaking change: lock down visibility for FileDescriptor syntax APIs. (8b1be51)
• Remove PROTOBUF_DEPRECATED in favor of [[deprecated]]. (5c59290)
• Add assert to the list of keywords for C++. (a75c1a2)
• Added Reflection::GetCord() method in C++ (6ecb5d0)
• Support C++ protobuf ctype=CORD for bytes field (generated code). (714f975)
• Expand LazySerializerEmitter to cover proto3 cases. (fab7f92)
• Unconditionally generate unknown field accessors. (dd8a3cf)
• Introduce proto filter for inject_field_listener_events. (2dc5338)
• Add ParseFromCord to TextFormat (055a6c6)
• Mark proto2::Arena::GetArena as deprecated. (9f95958)

Java

• Adds Timestamps.now(). (295f112)
• Breaking change: Lock down visibility for FileDescriptor.getSyntax(). (8c8b2be)
• Added Reflection::GetCord() method in C++ (6ecb5d0)
• Re-attach OSGI headers to lite,core, and util. This information was dropped in the move from maven to bazel. (4b5652b)
• Add Java FileDescriptor.copyHeadingTo() which copies file-level settings (e.g. syntax, package, file options) to FileDescriptorProto.Builder (6e6d0bc)
• Remove unnecessary has bits from proto2 Java. (c440da9)
• Add casts to make protobuf compatible with Java 1.8 runtime. (d40aadf)
• Fix mutability bug in Java proto lite: sub-messages inside of oneofs were not (fa82155)
• Document known quirks of EnumDescriptor::is_closed() when importing across files with different syntaxes. (1de344f)

Kotlin

• Remove errorprone dependency from kotlin protos. (7b6e828)

Csharp

• Make json_name take priority over name (fully) in C# parsing (#12262) (4326e0f)
• Add C# presence methods to proto3 oneof fields. (affadac)

Objective-C

• Enforce the max message size when serializing to binary form. (e6d01b2)
• mark mergeFromData:extensionRegistry: as deprecated. (e3b0051)

Python

• Make numpy/pip_deps a test-only dependency. (fe038fc)
• Mark sequence containers as Py_TPFLAGS_SEQUENCE, enabling pattern matching (a05c57d)
• Fix Python bug with required fields (579f4ab)
• Mark deprecated SupportsUnknownEnumValues on Message reflection. Use FieldDescriptor or EnumDescriptor instead. (0b9134b)
• Raise warnings for MessageFactory class usages (dd9dd86)
• Add Python support for retention attribute (63389c0)
• Document known quirks of EnumDescriptor::is_closed() when importing across files with different syntaxes. (1de344f)

Python C-Extension (Default)

• Fix Python bug with required fields (protocolbuffers/upb@ea4cb79)
• See also UPB changes below, which may affect Python C-Extension (Default).

PHP

• RepeatedField: unset by index (#11425) (363fa89)

PHP C-Extension

• RepeatedField: unset by index (#11425) (363fa89)
• See also UPB changes below, which may affect PHP C-Extension.

Ruby

• Change the Ruby code generator to emit a serialized proto instead of the DSL (#12319) (bd52d04)
• Breaking change: Lock down visibility for FileDescriptor.getSyntax(). (8c8b2be)
• Feat(6178): emit ruby enum as integer (#11673) (8aa2b17)

Ruby C-Extension

• Feat(6178): emit ruby enum as integer (#11673) (8aa2b17)
• Ruby: Implement Write Barriers (#11793) (d82d8a4)
• See also UPB changes below, which may affect Ruby C-Extension.

UPB (Python/PHP/Ruby C-Extension)

• Implements upb_Message_DeepClone. (protocolbuffers/upb@3286f94)

Other

• Fix btree issue in map tests. (9898418)
• Fix declared dependencies for pkg-config (#12518) (f79e35c)
• Fix build for newlib (#12501) (945bf3c)
• Update usage disclaimer on FieldOptions.ctype (b8e7192)
• Add config option to print 64-bit integers in JSON as unquoted ints if they can be losslessly converted into a 64-bit float. (330e10d)
• Version protoc according to the compiler version number. (e67136d)
• Fix shared object ABI exports (#5144) (#11032) (462964e)
• Ensure VarintParseSlowArm{32,64} are exported with PROTOBUF_EXPORT (2ce5639)
• Update the min required CMake version to 3.10 (bcb20bb)

Protocol Buffers v22.3

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

UPB (Python/PHP/Ruby C-Extension)

• Remove src prefix from proto import (protocolbuffers/upb@e05f22a)

Other

• Fix .gitmodules to use the correct absl branch (f51da1f)
• Remove erroneous dependency on googletest (#12276)

Protocol Buffers v22.2

Announcements

• This release was only published for Java and Ruby.
• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

Java

• Add version to intra proto dependencies and add kotlin stdlib dependency (99ed010)
• Add $ back for osgi header (d80c12d)
• Remove $ in pom files (8ac2337)

Kotlin

• Add version to intra proto dependencies and add kotlin stdlib dependency (99ed010)
• Remove $ in pom files (8ac2337)

Protocol Buffers v22.1

Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

Compiler

• Modify release artifacts for protoc to statically link system libraries. (8ad6cdd)
• Add visibility of plugin.proto to python directory (620d21a)
• Strip "src" from file name of plugin.proto (9c89a70)

Java

• Add OSGi headers to pom files. (e909bfc)

Kotlin

• Remove errorprone dependency from kotlin protos. (66f80c3)

Other

• Version protoc according to the compiler version number. (b143586)