Announcements

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

Bazel

Generate .pyi files in py_proto_library (#10366) (#21567) (e3e56c7)
Introduce denylisted_protos as a preferred replacement for blacklisted_protos attribute. (795ab9d)
Use native.proto_library for Bazel 7 and explicitly error for Bazel 6 which is incompatible and out of support. (da0077e)
Require ProtoInfo provider instead of proto_library rule for bazel cc_proto_library deps. (639f1c9)

Deprecate google.protobuf.Method.syntax and google.protobuf.Method.edition (9ec241e)
Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)
Ban import weak and weak field option in edition 2024 in protoc (parser and c++ runtime). (a2a0511)

Remove the flag requirement for Bazel+MSVC users. (c6ba697)
Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)
Cast GetCachedTID() to unsigned to prevent left-shifting a negative number. (3e935cf)
Update comment at the top of message.h and message_lite.h to document that it should only be extended by gencode and not user code. (6a6ba52)
Treat warnings encountered in chromium builds as errors. (21c3c53)
Ban import weak and weak field option in edition 2024 in protoc (parser and c++ runtime). (a2a0511)

Restore the long-deprecated static functions on TextFormat. (5777d3b)
Add Kotlin class name helpers to names.h (527b2ab)
Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)
Update Java gencode base class documentation to clarify that it is not supported to extend them. (c3177fb)
Add a FieldMaskUtil#trim overload that accepts TrimOptions and allows retaining unset primitive field state. (84c5b63)

Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)
Include also ARM build of protoc in nuget package (#21568) (c2b4040)
Improve C# handling of Any JSON serialization/deserialization (dc4e429)

Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)

Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)
Update Rust generator to output minidescriptors instead of C minitables (1b4b5fc)
Add [clear_and_]parse_dont_enforce_required() to Rust protobuf. (e2fd7a0)
Add #[non_exhaustive] on the oneof-case enum (aba2075)
Impl Clone for RepeatedIter (aca1ed5)
See also UPB changes below, which may affect Rust.

Add Python deprecation warnings for Descriptor Label. (64a76e6)
Updating setuptools to patch CVE-2025-47273 (#22094) (508aba1)
Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)
Extend gencode compatibility support back to 3.20.0 (1af7fd4)
Change proto_api work with custom pool for upb and pure python. (49d9e2d)
Python pyi print "import datetime" for Duration/Timestamp field (f59b84a)
Add reference leak check to Python well_known_types_test. Fix two refleak bugs. (e5f9ab4)
Add reference leak check to Python timestamp_test and duration_test. Fix a refleak bug when assign datetime/duration to Timestamp/Duration (e004c8b)
Add recursion depth limits to pure python (17838be)
Remove calls to Label within Protobuf Python. (f69180a)
Change Python .pyi stubs to generated _Optional[] for bool fields same with (6972464)
Remove internal/api_implementation.Version() (cbad456)
Fix python proto_api to work with messages that required fields are not set. (f63ed55)
Fix python upb crashes on map/repeated reference stub destructor (4274909)
Mark Py JSON float_precision deprecated. (727a8ed)

Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)
Fix(php): use count instead of ->count() to avoid bug in c-extension (9fbce62)
[php][compiler][ext] - Add missing has* methods and other well known types (#20636) (01a7429)
Fix PHP 8.4 deprecation in GPBDecodeException (#21232) (676666e)

Change 'getLabel is deprecated' to E_USER_DEPRECATED (158d8ac)
[php][compiler][ext] - Add missing has* methods and other well known types (#20636) (01a7429)
See also UPB changes below, which may affect PHP C-Extension.

Enable edition 2024 support in protoc and language generators for cpp, hpb, java, kotlin, objectivec, php, python, pyi, rust. (26843b3)
Fix silent failure of rb_test rules to run test (#21733) (4f74764)

Add upb_Message_SetExtensionMessage as a helper for setting a extension field that is a message. This is the extension equivalent of upb_Message_SetBaseFieldMessage. (f15d28a)

Update github major version tags to be formatted v..- for clarity (e001d57)
Upgrade Abseil dependency to 20250512.1 (ee68ed1)
Patch rules_ruby to apply neverlink = True to the jars rule (#21416) (88e11bd)