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10.0.0-pre.20260614.1

Release 10.0.0-pre.20260614.1 (2026-06-22)
@a-googler a-googler tagged this 22 Jun 16:26 
Baseline: e05fcb1658bce403337a3e73a0ca184c45128ad6

Important changes:

  - Fixed repo content caching for non-gRPC cache backends.
  - CCStarlarkInternal exposes hash functions currently  used by
    rules_cc Java rules to starlark
  - The new `--expand_param_files` flag expands param files into
    their contents in `--subcommands` and `--verbose_failures` output.
  - Fixed a performance regression in Bazel 9 that causes
    `RepoMappingManifest` actions to consume a lot of CPU time.
  - Improved BES upload failure message with failed invocation's ID.
  - Any existing action relying on the legacy hardcoded list in Bazel
    code being populated will now need to opt-into output mapping by
    modifying their execution requirements.

This release contains contributions from many people at Google, as well as Benjamin Peterson, Bryce Lampe, Fabian Meumertzheim, honnix, Keith Smiley, peakschris.
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