winget install --id Bazel.BazelAbout Bazel
a fast, scalable, multi-language and extensible build system
What's new in 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 contri...
Version history
| Version | Updated | Notes |
|---|---|---|
| 9.1.0 | Unknown | 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_... |
| 9.0.2 | Unknown | Release 9.0.2 (2026-04-09) Release Notes: Configurability: - Allow platform-specific startup bazelrc flags (https://github.com/baz… (#29251) ExternalDeps: - Include rctx.os.{name,arch} in the pre declared inputs hash (#2... |
| 9.0.1 | Unknown | Release 9.0.1 (2026-03-10) Release Notes: CLI: - Add a new optional param to fail() to allow pretty-printing user erro… (#28817) Configurability: - Fix NPE caused by --repo_env with no value set (#28606) (#28640) - Fix v... |
| 9.0.0 | Unknown | Release 9.0.0 (2026-01-20) Release Notes: Configurability: - The new attr.label_list_dict type accepts a dict in which keys are strings and values are lists of labels. (#27550) - The new package_relative_label function o... |
| 8.7.0 | Unknown | Release 8.7.0 (2026-05-07) Release Notes: Notice: Bazel installers contain binaries licensed under the GPLv2 with Classpath exception. Those installers should always be redistributed along with the source code. Some vers... |
| 8.6.0 | Unknown | Release 8.6.0 (2026-02-26) Release Notes: Configurability: - Reporting of cached test results can now be suppressed with --test_summary=short_uncached or --test_summary=detailed_uncached. (#28343) - ctx.actions.symlink n... |
| 8.5.1 | Unknown | Note If you are looking for rolling releases, please visit this page. Release 8.5.1 (2026-01-12) Bazel 8.5.1 is a patch LTS release. It is fully backward compatible with Bazel 8.0 and contains selected changes by the Baz... |
| 8.5.0 | Unknown | Release 8.5.0 (2025-12-11) Release Notes: Configurability: - The new ctx.configuration.short_id field provides a short identifier for the current configuration that is understood by bazel config. (#27128) - The --module_... |
| 8.4.2 | Unknown | Note If you are looking for rolling releases, please visit this page. Release 8.4.2 (2025-10-01) Bazel 8.4.2 is a patch LTS release. It is fully backward compatible with Bazel 8.0 and contains selected changes by the Baz... |
| 8.4.1 | Unknown | Release 8.4.1 (2025-09-11) Release Notes: ExternalDeps: - Speculative fix for repo contents cache race (#26950) General: - Release 8.4.0 (2025-09-04) - Release 8.4.1 (2025-09-11) OSS: - Update MODULE.bazel and .bazelvers... |
| 8.4.0 | Unknown | Release 8.4.0 (2025-09-04) Release Notes: Android: - Add better defaults for mobile-install flags (#26388) Configurability: - Added --incompatible_compact_repo_mapping_manifest, which causes the repo mapping manifest fil... |
| 8.3.1 | Unknown | Release 8.3.1 (2025-06-30) Release Notes: Configurability: - Remove the "overwrote runfiles" warning (#26374) ExternalDeps: - Fix hang with force fetching + repo contents cache (#26412) General: - Release 8.3.0 (2025-06-... |
| 8.3.0 | Unknown | Release 8.3.0 (2025-06-23) Release Notes: ExternalDeps: - source.json now supports a new attribute mirror_urls as backup URLs for the source archive. (#25937) - repository_ctx.download_and_extract now supports the .whl f... |
| 8.2.1 | Unknown | Note If you are looking for rolling releases, please visit this page. Release 8.2.1 (2025-04-17) Bazel 8.2.1 is a patch LTS release. It is fully backward compatible with Bazel 8.0 and contains selected changes by the Baz... |
| 8.1.1 | Unknown | Note If you are looking for rolling releases, please visit this page. Release 8.1.1 (2025-02-25) Bazel 8.1.1 is a patch LTS release. It is fully backward compatible with Bazel 8.0 and contains selected changes by the Baz... |
| 8.1.0 | Unknown | Note If you are looking for rolling releases, please visit this page. Release 8.1.0 (2025-02-13) Bazel 8.1.0 is a minor LTS release. It is fully backward compatible with Bazel 8.0 and contains selected changes by the Baz... |
| 7.7.1 | Unknown | Note If you are looking for rolling releases, please visit this page. Release 7.7.1 (2025-11-12) Bazel 7.7.1 is a patch LTS release. It is fully backward compatible with Bazel 7.0 and contains selected changes by the Baz... |
| 7.7.0 | Unknown | Release 7.7.0 (2025-10-30) Release Notes: Configurability: - The new ctx.configuration.short_id field provides a short identifier for the current configuration that is understood by bazel config. (#27219) ExternalDeps: -... |
| 7.6.2 | Unknown | Release 7.6.2 (2025-10-08) Release Notes: General: - Release 7.6.1 (2025-03-31) - Release 7.6.2 (2025-10-08) OSS: - Fixes for macOS compatibility (#27160) - Update the .bazelversion (#27167) Acknowledgements: This releas... |
| 7.3.1 | Unknown | No notes |