The maintainer expects the official protobuf project to release their rust library soon and expects it to be as fully featured as the C++ library. See their source code and crate for more information.

🚀 Features

• Configure prost path via prost_build::Config or #[(prost(prost_path = "::prost")] (#1274)
• Support for deprecated enum and oneof fields (#1316)

🐛 Bug Fixes

• (prost-build) Resolve OneOf type name conflict with embedded message (#1294)
• (prost-build) Avoid OneOf type collision with enums and keyword names (#1341)

💼 Dependencies

• Use trait Error from core (#1179)
• (deps) Update protobuf to v25.8 (#1323)
• (deps) Update criterion requirement from 0.6 to 0.7 (#1308)
• (deps) Update petgraph to 0.8 (#1327)
• (deps) Bump actions/upload-artifact from 4 to 5 (#1351)
• (deps) Bump actions/checkout from 5 to 6 (#1370)
• Bump actions/checkout to v5 (#1312)
• Update clippy to version 1.87 (#1292)
• Replace once_cell dependency by std lib (#1119)

📚 Documentation

• Update outdated link is test documentation (#1289)
• Describe use of encoding module (#1322)
• Update the readme MSRV to the actual number (#1331)
• Update URLs after manual review (#1336)
• Answer why fields are wrapped in option (#1358)

🎨 Styling

• Add spaces to derive arguments in generated code (#1290)
• Use variables directly in the format! string (#1293)
• Remove unneeded lint allow statements (#1326)
• Remove allocation in tests (#1332)
• Simplify DecodeError description to an enum (#1330)
• Use variables directly in the format! string (#1361)
• Fix typo in prost/src/encoding.rs (#1369)

🧪 Testing

• Rename package of ident_conversion (#1291)
• Add test for split buffer varint decoding (#1321)
• Add descriptive reason of test failure (#1320)
• Additionally test decode_varint_slice with roundtrips (#1325)
• (result_struct) Move tests to separate module (#1333)
• (proto3_presence) Move test to separate module (#1334)
• (result_enum) Move test to separate module (#1342)
• (option_enum) Move test to separate module (#1344)
• (option_struct) Move tests to separate module (#1345)
• (message_encoding) Roundtrip Coumpound (#1365)
• (no_unused_results) Add roundtrip for Test message (#1364)
• (ServiceGenerator) Verify the content of all generated files (#1357)
• (derive_copy) Allow dead code (#1362)
• Always choose macOS 14 (#1324)

⚙️ Miscellaneous Tasks

• Replace duplicate README by a symlink (#1303)
• Add cargo-semver-checks (#1337)