Baseline:  50b61e38fb6eaa08a6c811a313824a59f1c2abbf

Release Notes:

+ Fix tree file materialized as symlink to another file when building without the bytes. (#​20409)
+ Don't pass --add-opens= to javac (#​20472)
+ Flip --incompatible_visibility_private_attributes_at_definition (#​20520)
+ Fix extraction of tar archives containing sparse files. (#​20531)
+ RemoteSpawnRunner: record inbetween phases in timing profile (#​20550)
+ Add profiling to `remoteActionBuildingSemaphore.acquire()` (#​20549)
+ The label API shakeup & docs cleanup (#​20590)
+ Disable rewriter test (#​20758)
+ Disable PyTest.testSmoke on macOS (#​20729)
+ Upgrade abseil-cpp to fix build on macos_arm64 (#​20785)
+ Ignore read-only errors when updating the `mtime` of the `install_base` (#​20568)
+ Restart at most once when prepopulating repository rule environment (#​20667)
+ Fix bootstrapped Bazel binary (#​20804)
+ Add flag `experimental_throttle_remote_action_building` (#​20861)
+ Fix versioned shared libraries for macOS toolchain (#​20847)
+ Proto toolchainisation cherrypicks (#​20925)

Acknowledgements:

This release contains contributions from many people at Google, as well as bazel.build machine account, Brentley Jones, Fabian Meumertzheim, Jordan Mele, Mai Hussien, oquenchil, Rahul Butani, Son Luong Ngoc, Xùdōng Yáng.

Baseline:  0f231ac8acabcd8aa309da041c98ab90a1552418

Release Notes:

+ Support multiple remote execution digest functions (#​19042)
+ Release 6.4.0 remote (#​18959)
+ Move BazelFileSystemModule into bazel package (#​19043)
+ Fix a bug where frozen targets list was mutated while expanding env attribute (#​19053)
+ Mark isolated extension usages as experimental (#​19065)
+ Add the remote_require_cached flag (#​19075)
+ Advertise CcInfo from cc_import (#​19086) (#​19088)
+ Update java_tools version to 12.6 (#​19092)
+ Set the digest_function field as part of all relevant gRPC requests (#​19049)
+ Merge `use_repo` buildifier fixups into a single command (#​19134)
+ Ensure that extension unique names followed by `~` are prefix-free (#​19164)
+ Lockfile updates & fixes (#​19153)
+ Switch xcode_autoconf to use 'configure = True' (#​19174)
+ Cherry pick Add a Starlark flag that allows disabling proguard. This will be useful for testing later. (#​19179)
+ Update CODEOWNERS for 6.4.0 (#​19194)
+ Friendlier error message for `bazel_dep`s without `version` (#​19196)
+ Always check `$config_dependencies` visibility at use (#​19197)
+ Add support for the BLAKE3 digest function (#​19191)
+ Enable cc toolchain resolution when cross compiling to windows arm64. (#​19198)
+ Ensure disk cache root exists (#​19225)
+ Fix valid json when using jsonproto output in queries  with new `--ouput=streamed_jsonproto` implementation. (#​19226)
+ Add toolchain type for Java bootstrap runtime (#​19220)
+ Add Starlark implementation for several CcCommon methods. (#​19076)
+ Rename `cc_test_wrapper` to `cc_test` (#​19231)
+ Cherry-pick commits to fix a Windows issue (#​19232)
+ Add support for more workspace boundary files to bash completion (#​19281)
+ Use `debugPrint` instead of `str` for `fail` arguments (#​19283)
+ Include name in `repr` of exported `rule`s (#​19229)
+ Download `BazelRegistryJson` only once per registry (#​19300)
+ Make module extension tag's `debugPrint` useful for error messages (#​19285)
+ Intern repository mapping entries (#​19293)
+ Add `additional_linker_inputs` option to `cc_library` rule (#​19264)
+ Do not rerun module extensions when only imports or locations change (#​19284)
+ Add profiling for Bzlmod operations (#​19313)
+ Retry on javax.net.ssl.SSLException ... BAD_DECRYPT (#​19346)
+ Fetch `RepoSpecs` in parallel (#​19354)
+ Make `MODULE.bazel.lock` deterministic (#​19370)
+ Ensure lockfile is updated after reset to pre-build state (#​19371)
+ build-runfiles: remove temporary file prior to creating it (#​19386)
+ Always fail on unknown attributes (#​19404)
+ Ignore Starlark options on commands with `allowResidue = False` (#​19417)
+ Separate PackageSpecificationProvider from its target (PackageGroupConfiguredTarget) (#​19420)
+ Expose PackageSpecificationInfo provider as a top level symbol (#​19422)
+ Revert "Report remote execution messages as events" (#​19415)
+ [6.4] Add --incompatible_disable_objc_library_transition (#​19393)
+ Create .bazelversion to address postsubmit timeout issues (#​19435)
+ Add `contains` method inside `PackageSpecificationProvider`  (#​19425)
+ Wrong include path to Clang 16 on Windows (#​19430)
+ Simplify release notes by just printing the first line of the commit … (#​19448)
+ Remove PackageGroupConfiguredTarget.isAvailableFor function (#​19444)
+ Remove default -s flag from macOS libtool invocation (#​19454)
+ Turn off lockfile feature by default (#​19462)
+ Take the no-remote-exec tag into account when computing the action salt (#​19457)
+ Add `--incompatible_merge_fixed_and_default_shell_env` (#​19319)
+ Improve error when a label is provided in `config_setting`'s `values` (#​19484)
+ Mark tool inputs in the execution log. (#​19483)
+ Add visionOS support (#​19436)
+ Intern empty `Depset`s (#​19443)
+ Do not allow applicable_licenses on platform. (#​19426)
+ Cherry pick Bzlmod fixes (#​19494)
+ Optimize classpath pre-processing in java_stub_template.txt (#​19491)
+ Add output name to CacheNotFoundException (#​19452)
+ feat: add option to exit early if analysis cache is discarded (#​19503)
+ Cherry pick platform dependent lockfile (#​19498)
+ Print Passed and Failed methods in detailed test summary (#​19505)
+ Add formatted timestamp entries to volatile workspace status file. (#​19499)
+ Write an explicit line ending to the lockfile (#​19519)
+ Only use `/showIncludes` if supported (#​19521)
+ Also apply `NestedSet` optimizations to `Depset` (#​19492)
+ Add diff_against_dynamic_baseline option to experimental_output_direc… (#​19514)
+ Update java_tools to v12.7 (#​19522)
+ Advertise CcInfo from cc_proto_library (#​19534)
+ Update unknown Xcode version error message and provide an environment variable to force re-evaluation (#​19540)
+ Print dep chain leading to a module that is in error (#​19543)
+ Show fetch progress for the `mod` command (#​19542)
+ Revert "Switch xcode_autoconf to use 'configure = True' (#​19174)" (#​19550)
+ Explain the use of `str(Label(...))` in the docs (#​19554)
+ Add `--consistent_labels` flag to all query commands (#​19567)
+ Inject builtin modules at the end of the MODULE.bazel file (#​19573)
+ Disable bzlmod_query_test for RBE build (#​19585)
+ Clear runfiles environment variables for `bazel run` (#​19606)
+ cc_library: propagate data dependencies via implementation_deps. (#​19590)
+ Error on potential unsupported `/showIncludes` lines (#​19611)
+ Use case-insensitive comparison for Windows paths in `runfiles.bash`  (#​19626)
+ Show test labels in summaries in display form (#​19625)
+ Remove stale extension entries from lockfile (#​19683)
+ Keep leading zero in formatted date (#​19694)
+ Bzlmod lockfile: fix pretty printing for attributes  (#​19691)
+ MODULE.bazel.lock file contains user specific paths (#​19698)
+ Consider RCs equivalent to release for `bazel_compatibility` (#​19689)
+ Use `Label` in `@bazel_tools//tools/jdk` macros (#​19675)
+ Remove stale extension entries from lockfile if module order changes (#​19730)
+ Update rules_java 5.5.1 (#​19701)
+ Fix Java compilation for jdk21 (#​19735)
+ Fix output materialized as symlink when building without the bytes. (#​19739)
+ Make lockfile's `RepoSpec` attributes more readable (#​19748)
+ Merge rule and aspect validation output groups (#​19745)
+ Fix handling of non-ASCII characters in archive entry file names (#​19765)
+ Raise an early error on invalid labels in transitions inputs/outputs (#​19764)
+ Handle synthetic method parameters entries that don't have names (#​19758)
+ Bazel release process: Fix push justification. (#​19768)
+ Flip --experimental_cc_implementation_deps (#​19751)
+ Add blake3 NEON instructions on linux arm64 (#​19804)
+ Fix crash when `environ` contains duplicate entries (#​19827)
+ Bump c++ standard to c++14 per default (#​19794)
+ Collect debug info context from implementation deps (#​19836)
+ Fix unconditional Skyframe invalidation with --lockfile_mode=… (#​19848)

Acknowledgements:

This release contains contributions from many people at Google, as well as Andreas Herrmann, bazel.build machine account, Brentley Jones, buildbreaker2021, Chirag Ramani, David Ostrovsky, Ed Schouten, Fabian Meumertzheim, George Gensure, Greg, John Laxson, Julio Merino, Keith Smiley, Matt Mackay, Mauricio G, NelsonLi0701, nglevin, Nicholas Junge, oquenchil, Orion Hodson, Roman Salvador, Ted Kaplan, Thi Doan, Thi Don, Tyler Williams, Xùdōng Yáng.