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Upgrading setuptools 74 to 75

Breaking74.1.3 → 75.9.1Breaking3Platform1Deprecated1New3Changed9Fixed12Other1

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BreakingUpgrade verdict

3 breaking changes and a platform requirement change.

In plain terms
  • An environment variable that let builds skip pyproject.toml validation is no longer recognized.
  • The upload_docs command no longer exists, so any workflow that calls it will fail.
  • Several legacy commands and the borland compiler are gone, and bundled copies of dependencies are replaced by normal dependencies; Cygwin C compiler settings now come from sysconfig.
  • setuptools now needs Python 3.9 or newer to run.
Must act 5 items need code or config changes

Python requirement changed in 75.4.0: >=3.8 → >=3.9.

What you must change

Breaking3
Removes support for the SETUPTOOLS_DANGEROUSLY_SKIP_PYPROJECT_VALIDATION environment variable.
SETUPTOOLS_DANGEROUSLY_SKIP_PYPROJECT_VALIDATION
75.5.0NEWS.rstSummarizedView source
Removes the upload_docs command.
upload_docs
75.0.0NEWS.rstSummarizedView source
Removes the register and upload commands, the config module, the borland compiler, and vendored dependencies.
registeruploadconfigborland
75.0.0NEWS.rstSummarizedView source
Platform1
Requires Python 3.9 or later.
75.4.0NEWS.rstSummarizedView source

Deprecations to plan for

Deprecated1
Deprecates the bdist_wheel.universal configuration option.
bdist_wheel.universal
75.1.0NEWS.rstSummarizedView source