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Enable support of Python 3.15 - #279
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antonwolfy wants to merge 2 commits into
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antonwolfy wants to merge 2 commits into
antonwolfy wants to merge 2 commits into
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Add Python 3.15 to the CI matrices and package metadata: - pyproject.toml: add the 3.15 classifier and bump requires-python to <3.16 - conda-package(-cf): add 3.15 build/test rows (numpy 2.5), pinned to the GIL-enabled cp315 ABI like the existing 3.14 rows - build_pip: add 3.15 rows with and without --pre - clang smoke builds: add 3.15 and allow-prereleases in setup-python - update the Python version lists in AGENTS.md files
antonwolfy
requested review from
jharlow-intel,
ndgrigorian,
vlad-perevezentsev and
xaleryb
as code owners
October 5, 2026 20:51
conda-forge's Python 3.15 RC builds depend on the _python_rc marker package, which is only published in conda-forge/label/python_rc. Add that channel to every conda build/test step and setup-miniconda 'channels' input that resolves Python 3.15; setup-miniconda creates its environment using only its own 'channels' input, so the channel added to the later conda build/CHANNELS steps is not enough.
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This PR adds Python 3.15 across the CI matrices and package metadata.
Note, it covers the GIL-enabled 3.15 build only: the new conda rows are pinned to the
cp315ABI the same way as the existing 3.14 rows. Free-threaded 3.15t is left for a follow-up, since conda-forge does not publish a free-threaded NumPy build for 3.15 yet.