The following release notes are still in the process of being updated and cleaned up.

Release 8.3.0rc3 (2025-06-17)

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 file extension for Python wheel files, treating them as ZIP archives under PEP 427. (#26323)

General:

• User-provided repo names may now start with a number. (#26252)

Performance:

• 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. (#26280)

Acknowledgements:

This release contains contributions from many people at Google, as well as Aaron Levy, Adin Cebic, Alberto Cavalcante, bazel.build machine account, Benji Vos, benjivos, Chi Wang, David Sanderson, Fabian Meumertzheim, Farid Zakaria, Greg, helly25, Jaden Peterson, Jim Carroll, John Millikin, Jordan Mele, Keith Smiley, Xdng Yng, Xùdōng Yáng, Zhongpeng Lin.

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