Announcements
- Protobuf News may include additional announcements or pre-announcements for upcoming changes.
Compiler
- UPB text encoder without using reflection for Rust (used for a message's Debug trait) that will print out field number to value entries instead of field name to value entries of a message like how it's expected for the usual text format using reflection. (f9dd9ce)
- Enable MessageLite::DebugString to use Message::DebugString where possible. (f810cc5)
- Always report plugin support errors from protoc. (986ef8d)
- Stop supporting EDITION_PROTO2 as an alias for EDITION_LEGACY. (35b3425)
- Rename
DynamicCastToGenerated
/DownCastToGenerated
to (18da465) - Mark deleted fields in descriptor.proto reserved (44c409d)
- Protoc: support inf, -inf, nan, and -nan in option values (#15017) (3c03e93)
C++
- Removed specific MSVC settings when installing (#17285) (770090e)
- Omit the
_raw_default_instance_
declaration when using DLL linkage. (79c55cb) - Enable MessageLite::DebugString to use Message::DebugString where possible. (f810cc5)
- Fix a bug in which proto code uses ctype instead of string_type internally. (dfbe987)
- Add an optimization that prevents an exponential number of comparisons on deeply (594a71f)
- Replace FindHelper() with BucketNumber() when only the bucket number is required. (8c7b1ec)
- Stop supporting EDITION_PROTO2 as an alias for EDITION_LEGACY. (35b3425)
- Rename
DynamicCastToGenerated
/DownCastToGenerated
to (18da465) - Prohibit using features in the same file they're defined in. (24b91a7)
- Implement new Debug API with redaction. (bb68eb2)
- Use bool HasHasbits(const FieldDescriptor*) instead of manual checks. (448e326)
- Add
java
to reserved names to escape extensions tojava_
. This may break existing references to gencode for extensions namedjava
. (c99cf4b) - Put arena cleanup nodes on a separate chunked list instead of at the ends of arena blocks. (f70d90b)
- Fix validation checks of implicit presence. (d6c2833)
- Clarify map behaviors in editions. (0dbd99a)
- Protoc: support inf, -inf, nan, and -nan in option values (#15017) (3c03e93)
Java
- Add overload for LazyStringArrayList.add(String): boolean (761d49a)
- Hoist SmallSortedMap.getNumArrayEntries() outside loops over array entries (229c958)
- Omit the
_raw_default_instance_
declaration when using DLL linkage. (79c55cb) - Java: Deprecate newExtensionWriter. (7122ba1)
- Immutable java: Use new lower-allocation extension serialization APIs from gencode (4151486)
- Reserialize all unresolved features using java features from the generated pool in case of descriptors from the custom pool. (415a147)
- Fix delimited inheritance in all languages. (8beb970)
- Full java runtime: Avoid allocating ArrayList iterators when serializing UnknownFieldSet (fac847c)
- Move back deprecation of java utf8 feature to 2024. (bd7078d)
- Reparse unknown features using extension registry containing Java features. (68d9087)
- Remove field SmallSortedMap.maxArraySize (16e0a63)
- Delete unused method SmallSortedSet.getOverflowEntriesDescending (c05be32)
- Avoid allocating FieldSet iterator if FieldSet is empty (3ba7280)
- Lazily resolve features for proto2 and proto3 for compatibility with old open source gencode that does not invoke feature resolution from gencode static init. (11c27df)
- Implement new Debug API with redaction. (bb68eb2)
- Replace SmallSortedMap.EmptySet with equivalent Collections.emptySet() (c6e2778)
- Add
java
to reserved names to escape extensions tojava_
. This may break existing references to gencode for extensions namedjava
. (c99cf4b) - Avoid allocating TreeMap in UnknownFieldSet.Builder.asMap (4b7c2d4)
- Avoid allocating iterator in TextFormat printing UnknownFieldSet (8c6e5b7)
- Add
null
to the list of reserved words. (510c143) - Add UnknownFieldSet.isEmpty (c56bddd)
- Java full runtime: Avoid allocating when calling asMap on empty UnknownFieldSet (d0b016f)
- Return the default instance when parsing from an empty byte[]. (f597991)
- Deprecate building from source with Maven to be removed in 4.28.x. (4c8da99)
- Java full runtime: Avoid allocating iterator if UnknownFieldSet's TreeMap is empty (4f12891)
- Proto java full runtime: avoid allocating Integers accessing enum lists (cc79f77)
- Split bootstrapped java_features.proto to keep it from leaking out. (2257232)
- Java Proto lite: avoid boxing Integers accessing enum lists (fb054c8)
- In the Kotlin DSL, reference builder methods with property syntax. (e9c9970)
- Java Proto Lite: Serialize repeated enums without allocating (de6aba9)
- Avoid boxing when serializing primitive lists in CodedOutputStreamWriter (eaee04d)
Kotlin
- In the Kotlin DSL, reference builder methods with property syntax. (e9c9970)
Csharp
- Fix delimited inheritance in all languages. (8beb970)
- Handle groups in C# JsonParser (#16970) (092cc15)
- Introduce
MessageDescriptor.IsMapType
in C# reflection to make it easier to tell whether a given message was generated by protoc for a map field. (047fc76) - C#: Fix discovery of oneof declarations in descriptor protos. (b50ff60)
Objective-C
- [ObjC] Add Swift helpers for
GPBUnknownFields
/GPBUnknownField
. (6750ed8) - [ObjC] Introduce the new
GPBUnknownFields
type. (47f633e) - Rename
DynamicCastToGenerated
/DownCastToGenerated
to (18da465)
Rust
- UPB text encoder without using reflection for Rust (used for a message's Debug trait) that will print out field number to value entries instead of field name to value entries of a message like how it's expected for the usual text format using reflection. (f9dd9ce)
- Enable MessageLite::DebugString to use Message::DebugString where possible. (f810cc5)
Python
- Nextgen Proto Pythonic API: Struct/ListValue assignment and creation (e17821c)
- Fix delimited inheritance in all languages. (8beb970)
- Make bytearray work (again) (#16691) (eb67a91)
- Nextgen Proto Pythonic API: Timestamp/Duration assignment, creation and calculation (b690e72)
- Update rules_python to 0.28.0 (e1bf1f0)
- Nextgen Proto Pythonic API: “Add-on” proto for length prefixed serialize/parse (3a9f074)
- Rename
DynamicCastToGenerated
/DownCastToGenerated
to (18da465) - Fixed printing of nan floats/doubles in Python. (f651080)
- Nextgen Proto Pythonic API: “Add-on” proto for JSON serialize/parse (6c91de9)
- Nextgen Proto Pythonic API: “Add-on” proto for serialize/parse (495ba7b)
- Use struct instead of ctype. allows the protobuf python library to work on cpython 3.11's new wasm target [1] (9de810a)
- Nextgen Proto Pythonic API: Add 'in' operator (24f27c3)
- Automated rollback of commit f799af8. (c4bf83b)
- Catch all the exceptions in python JSON ParseDict and raise (9cc5be1)
PHP
PHP C-Extension
- Fix segmentation faults with enabled keep_descriptor_pool_after_request (#16993) (e844510)
- See also UPB changes below, which may affect PHP C-Extension.
Ruby
- Remove
Arena_pin
in favor of adopting the UPB freezing API. (1194440) - Fix Ruby FFI to pass
MiniTable
toupb_Message_New()
akanew_message_from_def()
. (47f4bc9)
Ruby C-Extension
- [Ruby] Fix mismatched pointer type (#17240) (0aa7449)
- Remove
Arena_pin
in favor of adopting the UPB freezing API. (1194440) - See also UPB changes below, which may affect Ruby C-Extension.
UPB (Python/PHP/Ruby C-Extension)
- UPB text encoder without using reflection for Rust (used for a message's Debug trait) that will print out field number to value entries instead of field name to value entries of a message like how it's expected for the usual text format using reflection. (f9dd9ce)
- Fix delimited inheritance in all languages. (8beb970)
- Fixed printing of nan floats/doubles in Python. (f651080)
Other
- Add minimal Python support to MODULE.bazel (2eb4d69)
- Fix(bazel/python): incompatible_enable_proto_toolchain_resolution (#17078) (8434c12)
- Add Rust support to MODULE.bazel (f3c140f)
- Add rules_fuzzing dependency to MODULE.bazel. (a450c9c)
- Reenable FFI tests on CRuby. (e595749)
- Update comment for message_type (023e69d)
- Enable textproto conformance tests for "-0" and "-0F". (13caa08)
- Fix #10007: Propagate msvc-style link flags to clang-cl with Bazel (55592a2)
- Add system_python to protobuf_deps.bzl. (8a11178)