Release 9.0.0-pre.20250730.2 (2025-08-07)
Baseline: b4216ef
Cherry picks:
   + bbfb288:
     Fix
     9aa7583e97bffb17d2a6f4
     8aecefa932e8064daa performance regression.
Important changes:
  - Tool paths specified in `cc_toolchain` action configs are now
    normalized based on the current execution platform's OS rather
    than the host OS. In particular, Windows-style absolute paths are
    now treated as absolute paths when building on a Windows executor
    from a non-Windows host.
This release contains contributions from many people at Google, as well as Austin Schuh, Benjamin Peterson, Ed Schouten, Fabian Meumertzheim, George Gensure, Mike Lundy, Wade Carpenter.

Release 9.0.0-pre.20250721.4 (2025-07-31)
Baseline: 20cf927
Cherry picks:
   + 5b2baea:
     Freeze lists in extra link time libraries
   + e84de17:
     Deflake jvm_flags_escaping_test
New features:
  - The new `--*_env==NAME` syntax can be used with any of
    `--action_env`, `--host_action_env`, `--repo_env`, `--run_env`,
    and `--test_env` to undo any previous occurrences of the
    respective flags for that environment variable name. For
    `--repo_env` and `--run_env`, this also results in the variable
    being unset if it is set in the environment of the Bazel client.
This release contains contributions from many people at Google, as well as Alexander Golovlev, Benjamin Peterson, Fabian Meumertzheim, Jordan Mele, Yannic Bonenberger.

Release 9.0.0-pre.20250716.1 (2025-07-23)
Baseline: 3e62cbb
Important changes:
  - `ctx.actions.write` now supports path mapping when passed an
    `Args` object. Use the `mnemonics` attribute to assign it a
    dedicated mnemonic, which can then be used with
    `--modify_execution_info` to opt in to path mapping (see
    #22658 for details
    on path mapping).
This release contains contributions from many people at Google, as well as Fabian Meumertzheim, Jonathan Woodbury, Jordan Mele.

Release 9.0.0-pre.20250714.1 (2025-07-18)
Baseline: e08faa5
Incompatible changes:
  - `linking_context.linkstamps` has been removed.
Important changes:
  - If a cc toolchain feature named `shorten_virtual_includes` is
    enabled, virtual include header files are linked under
    `bin/_virtual_includes/<hash of target path>` instead of
    `bin/<target package path>/_virtual_includes/<target name>`. This
    shortens the virtual include paths which is critical for
    mitigating long path issue with MSVC on Windows.
This release contains contributions from many people at Google, as well as Fabian Meumertzheim.

Release 9.0.0-pre.20250710.1 (2025-07-16)
Baseline: ed358a1
New features:
  - The mnemonic of a file write action can now be set via the
    `mnemonic` parameter of `ctx.actions.write`.
Important changes:
  - Symbolic macros which use inherit_attrs now correctly inherit the
    aspect_hints attribute.
This release contains contributions from many people at Google, as well as Fabian Meumertzheim, Keith Smiley, PikachuHy.

Release 9.0.0-pre.20250706.3 (2025-07-11)
Baseline: 07bd966
Important changes:
  - Branches will always be merged as best as possible based on
    branch and
      block numbers during coverage report generation.
  - `--experimental_worker_for_repo_fetching` is removed.
  - Modules backed by `http_archive` or `git_repository` no longer
    require a MODULE.bazel file to be contained in the source archive.
This release contains contributions from many people at Google, as well as Adrian Vogelsgesang, Benjamin Peterson, dependabot[bot], Fabian Meumertzheim, Javier Maestro, Jordan Mele, Keith Smiley, Xdng Yng.

Release 9.0.0-pre.20250625.1 (2025-07-09)
Baseline: c319824
Important changes:
  - Added `--incompatible_compact_repo_mapping_manifest`, which
    causes the repo mapping manifest file for runfiles to use a more
    compat format when necessary.
This release contains contributions from many people at Google, as well as Fabian Meumertzheim, Keith Smiley.

Release 9.0.0-pre.20250620.1 (2025-07-01)
Baseline: 3f42ff9
Cherry picks:
   + 387ed02:
     Attempt to fix Bazel CI failure on Ubuntu
   + fefcfa1:
     Release 9.0.0-pre.20250620.1 (2025-07-01)
   + 861f25e:
     Release 9.0.0-pre.20250620.1 (2025-07-01)
   + 013dedf:
     Release 9.0.0-pre.20250620.1 (2025-07-01)
This release contains contributions from many people at Google, as well as .

Release 8.3.1 (2025-06-30)
Release Notes:

Release 9.0.0-pre.20250616.2 (2025-06-27)
Baseline: 066a162
Cherry picks:
   + 387ed02:
     Attempt to fix Bazel CI failure on Ubuntu
Important changes:
  - Added the `load_wasm` and `execute_wasm` methods to
    `repository_ctx` and `module_ctx` that allow repo rules and
    module extensions to run a WebAssembly binary. These methods are
    only available if `--experimental_repository_ctx_execute_wasm` is
    set.
  - Singlejar can exclude certain entries
This release contains contributions from many people at Google, as well as Carmen Chui, David Sanderson, dependabot[bot], Fabian Meumertzheim, Jaden Peterson, John Millikin, Jordan Mele, Keith Smiley, Son Luong Ngoc.