Release 9.0.0-pre.20250908.2rc1 (2025-09-22)

Baseline: 06b2d43d58bf9bdd274eddc24486a5edce6632ec

Cherry picks:

2b64ae49d190fa5e437656e1dd96f811fcc10a2b: Automated rollback of commit 585e16c701a6eef9a0b96cce31cae56893f04278.
db5e1b607d89add00669ae698bb3f589272325ed: Automated rollback of commit d96e067331680dd4dec9fb391ed148d90daafbf8.
081752428582c6fde18671600071a81b10b7c71a: Fix windows build for Rolling Release release-9.0.0-pre.20250908.2rc1 (#27036)

Incompatible changes:

range doesn’t accept None as second argument
Starlark string.split, string.rsplit don’t accept None as argument

New features:

“blaze info install_md5” is now available to tell the logical checksum of the Blaze server. This is mostly intended as a debugging aid.

Important changes:

The contents of source directories are now tracked for invalidation. Using glob or explicit lists of files to consume source directories is still strongly preferred, but there may be cases in which this isn’t feasible (e.g. file names that aren’t valid labels).

This release contains contributions from many people at Google, as well as Carmen Chui, Fabian Meumertzheim, Keith Smiley.

Notice: Bazel installers contain binaries licensed under the GPLv2 with Classpath exception. Those installers should always be redistributed along with the source code.

Some versions of Bazel contain a bundled version of OpenJDK. The license of the bundled OpenJDK and other open-source components can be displayed by running the command bazel license. The vendor and version information of the bundled OpenJDK can be displayed by running the command bazel info java-runtime. The binaries and source-code of the bundled OpenJDK can be downloaded from our mirror server.

Security: All our binaries are signed with our public key 3D5919B448457EE0.

Release 9.0.0-pre.20250908.2rc1 (2025-09-22)

Index of files