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TingDaoK
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Sep 24, 2026
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Python 3.15 GA is Oct 1, 2026.
Standard 3.15 already works,
cp313-abi3wheels cover it and cp315 has been added to relevant CI matrix to verify.Free-threaded 3.15t builds don't support
Py_LIMITED_APIso 3.15t failed to build. We migrated the free-threaded build to abi3t, the new stable ABI for free-threaded Python (Migration guide https://docs.python.org/3.15/howto/abi3t-migration.html ).The
cp315-abi3twheel will cover 3.15t+ in the same waycp313-abi3handles the non free-threaded versions.setup.py has been updated to define
Py_TARGET_ABI3Tand handle the abi3t wheel tag and.abi3t.sofilename manually (setuptools doesn't support abi3t yet).source/module.c added
PyModExporthook that abi3t requires behind#ifdef Py_TARGET_ABI3T.CD for 3.15 and 3.15t will wait on GA of Python 3.15.
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.