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Update CI for the Python 3.15 release - #255
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Python 3.15.0 is final: conda-forge ships it on the main label and actions/setup-python has a stable 3.15.0, so the workarounds added in 0df738e are no longer needed. - Remove conda-forge/label/python_rc from the conda env channels and the conda build/install channel lists (conda-package, conda-package-cf, build_pip). - Remove allow-prereleases: true from setup-python in both clang workflows. fail-fast: false is kept, matching conda-build-test.yml.
conda-forge now ships python 3.15.0 *_cp315t on the main label and actions/setup-python provides free-threaded 3.15.0 builds, so 3.15t gets the same coverage as 3.14t. - conda-build-test.yml: add a '3.15.* *_cp315t' include row (python_tag 3.15t) to the build and test matrices. - build_pip.yml: add a '3.15.* *_cp315t' include row. - Both clang workflows: add 3.15t to the python matrix. - Update the AGENTS.md files, which still described 3.15 as GIL-only.
antonwolfy
requested review from
jharlow-intel,
ndgrigorian,
vlad-perevezentsev and
xaleryb
as code owners
October 13, 2026 17:07
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Python 3.15.0 is final. This PR removes the release-candidate workarounds from the CI and adds free-threaded 3.15t to the build/test matrices.
Drop the 3.15 RC accommodations (reverts the RC part of 0df738e)
conda-forge now ships
python 3.15.0on themainlabel, andactions/setup-pythonhas a stable3.15.0:conda-forge/label/python_rcfrom the conda env channels and the conda build/install channel lists (conda-package.yml,conda-package-cf.yml,conda-build-test.yml,build_pip.yml).allow-prereleases: truefromsetup-pythoninbuild-with-clang.ymlandbuild-with-standard-clang.yml.fail-fast: false, which was added in the same commit, is kept.conda-build-test.ymlalready uses it.Add free-threaded 3.15t
conda-forge
mainnow haspython 3.15.0 *_cp315tbuilds (linux-64, win-64, osx-64), andsetup-pythonprovides-freethreaded3.15.0 artifacts. Python 3.15 now uses the same pattern as 3.14:conda-build-test.yml: add a3.15.* *_cp315tinclude row (python_tag: 3.15t) to both the build and test matrices.build_pip.yml: add a3.15.* *_cp315tinclude row.3.15tto thepythonmatrix.AGENTS.mdfiles, which still described 3.15 as GIL-only.