Lataa Bazel 9.1.0

Release 9.1.0 (2026-04-20)
Release Notes:
Configurability:
- package_group now supports labels with external repositories in the packages attribute. (#28893)
ExternalDeps:
- The compatibility_level and max_compatibility_level attributes of module in MODULE.bazel are now no-ops. Module maintainers should stop specifying those attributes and provide clear build time error messages and actionable migration paths when making major breaking changes. (#28616)
- rctx.symlink now implicitly watches the target if it falls back to a copy. (#28741)
- The local and remote repo contents cache now include the host OS and CPU architecture in the cache key. (#29195)
- The remote repo contents cache now supports all reproducible repo rules. (#29225)
- Fix launcher/launcher_maker for cross build, e.g. build windows binary on linux machine. (#29239)
Remote-Exec:
- The requires-worker-protocol execution requirement is now forwarded to remote execution services as a platform property (persistentWorkerProtocol) to support intermixing JSON and Proto remote persistent worker protocols across a build. (#28710)
- Bazel now has experimental support for --rewind_lost_inputs, which can rerun actions within a single build to recover from (remote or disk) cache evictions. (#28958)
- Added --experimental_remote_cache_chunking flag to read and write large blobs to/from the remote cache in chunks. Requires server support. (#28903)
Starlark-Interpreter:
- [Incompatible] string.splitlines() no longer incorrectly treats u+0085 (NEL) as a newline character (#28931)
Acknowledgements:
This release contains contributions from many people at Google, as well as Armando Montanez, armandomontanez, ashutosh0x, bazel.build machine account, Boleyn Su, Damian Banki, Fabian Meumertzheim, Greg, H5-O5, Jacob Nowjack, Jordan, Joseph Gette, Keith Smiley, Paul Tarjan, Ted Kaplan, Tyler French, Will Stranton, Xùdōng Yáng.
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