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About protobuf

Protocol Buffers (a.k.a., protobuf) are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data.

What's new in 35.0

Announcements - Protobuf News may include additional announcements or pre-announcements for upcoming changes. Bazel - Bazel 9 Support: Upgrade tests to Bazel 9 (3ee8d8a) - Moved protocopt flag out of the cc dir, since it is not a c++-specific flag. (325d8dc) - Add support for bazel 9.x (#26201) (f08d703) - Change @protobuf//bazel/flags:prefer_prebuilt_proto flag to True. (f9f32d2) - Dropped support for Bazel 7. (1816758) Compiler - Implement the Edition 2026 naming style enforcement feature. This will help prevent field name collisions. (ae0d964) - Add enum to enforce_naming_style feature to avoid field naming collisions which will be implemented in Edition 2026. (e4911a1) - Fail writing files in protoc CLI if any file output path is relative. (3bf2b07) - Mangle types named XyzView if there is any direct sibling named Xyz (63d6ef0) - Improve the namespacing selected by rustc used for gencode types in errors. (ce2eb73) - Fully qualify scalar types in Kotlin/Native proto generator. (adc8d22) - Change _opt() accessors to return an std::Option instead of protobuf::Optional (6ced612) - Make Message's trait bounds much better for generic use (be1292f) - Support more chars in type URLs in the C++ text-format parser. (3a87c6c) - Validate Feature Support on Custom Options (34c1110) - Trait clarity effort: introduce Singular trait, for types which are allowed as simple fields (cdbfaf1) - Trait clarity improvement on Map traits (a8daa95) C++ - Workaround for attribute handling bug in gcc < 13 (78dc67e) - Implement the Edition 2026 naming style enforcement feature. This will help preve...

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