Enable support for Python 3.15 - #243
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Raise the requires-python cap to <3.16 and add the 3.15 classifier.
Add Python 3.15 (cp315) to the conda build/test, pip editable, and clang workflows. Conda jobs pin the ABI explicitly as '3.15.* *_cp315'. Free-threaded 3.15t is deferred until conda-forge provides a cp315t build.
Update the CI Python version lists and note that 3.15 is GIL-only for now (conda-forge ships cp315 but not cp315t), with conda jobs pinning the ABI.
3.15 is still a pre-release: conda-forge gates it behind the python_rc label and actions/setup-python has no stable 3.15 yet. - Add conda-forge/label/python_rc to the conda env channels and to the conda build/install channel lists (conda-package, conda-package-cf, build_pip). - Set allow-prereleases: true for setup-python in both clang workflows. - Add fail-fast: false to build_pip and the clang workflows so a 3.15 failure no longer cancels the other Python jobs. These RC accommodations should be reverted once 3.15 is final.
antonwolfy
marked this pull request as ready for review
September 7, 2026 14:07
antonwolfy
requested review from
jharlow-intel,
ndgrigorian,
vlad-perevezentsev and
xaleryb
as code owners
September 7, 2026 14:07
vlad-perevezentsev
approved these changes
Sep 8, 2026
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LGTM
Thank you @antonwolfy
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Enables Python 3.15 support in
mkl-service.