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Protocol Buffers v29.0-rc1

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@mkruskal-google mkruskal-google released this 30 Sep 22:55
· 1087 commits to main since this release
v29.0-rc1
1a72d2d

Announcements

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

Bazel

  • Support --incompatible_enable_proto_toolchain_resolution (372ddb3)
  • Move ProtoInfo and ProtoLangToolchainInfo from Bazel (426ca8a)
  • Move java_{lite_}proto_library from Bazel repository (d77bdac)
  • Move proto_toolchain from rules_proto to protobuf (9f9cb7a)
  • Move proto_library from Bazel repository (3ff2cf0)
  • Move proto_common implementation from Bazel binary (b19fbe6)

Compiler

  • Introduce lifetimes for individual feature values. (0b6e768)
  • Windows - Fix handling of utf8 command line arguments (#17854) (b9d1800)
  • Limit feature deprecation warnings to reduce noise. (5cd9a46)

C++

  • Fix C++ ifndef_guard printer to also convert "-" to "_". (7331b77)
  • Fix C++ codegen namespace printer to print closing namespaces in reverse order. (3bf9c40)
  • Fix raw_ptr.cc on exotic architectures (#18193) (63f6262)
  • Fix cord handling in DynamicMessage and oneofs. (9e8b30c)
  • Fix packed reflection handling bug in edition 2023. (4c92328)
  • Add JsonStreamToMessage method (0259cc3)
  • Introduce lifetimes for individual feature values. (0b6e768)
  • Insert software prefetches into merge functions. This improves performance when hardware prefetchers are disabled on AMD machines. (d993365)
  • Insert software prefetches into proto parsing functions. This improves performance when hardware prefetchers are disabled on AMD platforms. (8aa0add)
  • Add prefetching of subsequent extensions in ExtensionSet::ForEach. (9b019ee)
  • Remove the AnyMetadata class and use free functions instead. (920d5c3)
  • Add [[deprecated]] attribute when generating enums and classes. (23aada2)
  • Use linear search instead of binary search in flat mode of ExtensionSet. (0ed61f0)
  • Prepare MessageLite::GetTypeName to be upgraded to return (30a8ef5)
  • Limit feature deprecation warnings to reduce noise. (5cd9a46)
  • Add Compiler Condition to use inline assembly optimizations with ARM64 for Compatibility with MSVC (#17671) (c5f6231)
  • Enable small object optimization (SOO) for RepeatedField in order to reduce data indirections. (e2525e6)
  • Return backing array memory to arena in ExtensionSet. (5ac8ee1)
  • In edition 2024, Enum_Name(value) functions return absl::string_view by default. (e3fa6aa)
  • Add Prefetchers to Proto Copy Construct to help address load misses (cdb7238)
  • Reduced nesting in GenerateByteSize: slight readability improvements in generated code. (162a740)
  • Introduce FieldDescriptor::cpp_string_type() API to replace direct ctype inspection which will be removed in the next breaking change (d0e49df)
  • Update the comment of TextFormat::Printer::RegisterMessagePrinter that the method takes ownerhip of the printer pointer. (d911161)
  • Prepare the code for migrating return types from const std::string& to (e13b8e9)

Java

  • Speed up CodedOutputStream by extracting rarely-executed string formatting code (f8f5136)
  • Return constant Value objects for true, false, and "" (4fbb0c5)
  • Optimise CodedOutputStream.ArrayEncoder.writeFixed32NoTag/writeFixed64NoTag (a51f98c)
  • CodedOutputStream: avoid updating position to go beyond end of array. (76ab5f2)
  • Convert IndexOutOfBoundsException to OutOfSpaceException in UnsafeDirectNioEncoder (0e75d92)
  • Suppress ReturnValueIgnored errorprone issues (bbbc7b9)
  • Fix packed reflection handling bug in edition 2023. (4c92328)
  • Move cc_proto_library from Bazel repository (5254448)
  • Protobuf Lite ArrayLists: Defer allocating backing array until we have some idea how much to allocate. (05a8a40)
  • Allocate correct-sized array when parsing packed fixed-width primitives (4e8469c)
  • Bugfix: Make extensions beyond n=16 immutable. (ee419f2)
  • Reserve capacity in ProtobufArrayList when calling Builder.addAllRepeatedMessage(Collection) (e3cc31a)
  • Avoid allocating iterators when calling Message.Builder.addAllFoo(RandomAccess List) (bd1887e)
  • Remove the AnyMetadata class and use free functions instead. (920d5c3)
  • Add [[deprecated]] attribute when generating enums and classes. (23aada2)
  • Binary compatibility shims for GeneratedMessageV3, SingleFieldBuilderV3, RepeatedFieldBuilderV3, and their nested classes to restore binary compatibility with <=v3.x.x generated code built against v3.x.x prior to v4.26.0 breaking release. (df8a11e)
  • Implement a mechanism to control the output format of Message.toString within a Runnable instance. (737803e)
  • Fix TextFormat.Parser to appropriately handle unknown values for open enums (df1aad4)
  • Inline ArrayList's array into SmallSortedMap (910f627)
  • Deprecated unused/obsolete mutable APIs, to be removed in next breaking change. (e889b0b)

Kotlin

  • Support building //java with bzlmod (507ba36)
  • Replace deprecated use of toBytes() with Character property .code (#18236) (5d9deab)

Objective-C

  • [ObjC] Make debug runtime tell developers to update their generated code. (cdd3cf7)
  • [ObjC] Issue stderr warnings for deprecated generation options. (e9140a1)
  • [ObjC] Deprecate GPBUnknownFieldSet and related apis. (d794139)
  • [ObjC] Deprecate GPBTextFormatForUnknownFieldSet(). (55e997e)

Python

  • Fix cord handling in DynamicMessage and oneofs. (9e8b30c)
  • Fix packed reflection handling bug in edition 2023. (4c92328)
  • Fix ContainerBase::DeepCopy to not modify the source object. (9fa1f4f)
  • Introduce lifetimes for individual feature values. (0b6e768)
  • Nextgen Proto Pythonic API: Add any.py (dd95e5b)
  • Add test that tries to parse a JSON string that exceeds the recursion limit. (5a22455)
  • Raise warnings for deprecated python cpp extension GetDebugString(). (b70c4b0)
  • Nextgen Proto Pythonic API: Add duration.py (903c3f1)
  • Nextgen Proto Pythonic API: Add timestamp.py (ee26f27)
  • -Remove service.py usages in builder (2967c52)
  • Raise warnings for deprecated google/protobuf/reflection.py APIs. (55705f8)

PHP

  • Fix: do not throw deprecated warning on field getters for default values (#17788) (6d84da5)

Ruby

  • Remove codes for unsupported Ruby (#17353) (184f3a3)
  • [Ruby] Warn if assigning a "UTF-8" string with invalid UTF-8. (#17253) (b07e4b1)

Ruby C-Extension

  • Fix a potential Ruby-upb use of uninitialized memory. (4d75c82)
  • [Ruby] Warn if assigning a "UTF-8" string with invalid UTF-8. (#17253) (b07e4b1)
  • See also UPB changes below, which may affect Ruby C-Extension.

UPB (Python/PHP/Ruby C-Extension)

  • Fix a potential Ruby-upb use of uninitialized memory. (4d75c82)
  • Fixed NAN/INFINITY definitions to work on Windows 11 SDK. (0309d86)

Other

  • Docs: add nebius.ai custom options to registry (#18297) (e5d2dbd)
  • Protobuf-mode: add edition keyword for syntax highlighting (1384512)
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