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Add support for Python 3.15 - #633
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Add support for Python 3.15, and release 3.15.0. The default Python version remains unchanged (at 3.14) for now. Release announcement: https://blog.python.org/2026/10/python-3150-final-is-here/ https://www.python.org/downloads/release/python-3150/ Details on what's new in Python 3.15: https://docs.python.org/3.15/whatsnew/3.15.html Binary builds: https://github.com/heroku/heroku-buildpack-python/actions/runs/37947202278 Python 3.15 readiness status of the top 360 packages on PyPI: https://pyreadiness.org/3.15/ Free-threaded variants (`3.15t`) remain unsupported for now: there have been no requests for them yet, and third-party package support is still inconsistent (see https://py-free-threading.github.io/tracking/ and https://hugovk.github.io/free-threaded-wheels/). Closes #632. GUS-W-20591281.
edmorley
marked this pull request as ready for review
October 9, 2026 15:18
edmorley
enabled auto-merge (squash)
October 9, 2026 15:18
Malax
approved these changes
Oct 9, 2026
This was referenced Oct 9, 2026
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Add support for Python 3.15, and release 3.15.0.
The default Python version remains unchanged (at 3.14) for now.
Release announcement:
https://blog.python.org/2026/10/python-3150-final-is-here/
https://www.python.org/downloads/release/python-3150/
Details on what's new in Python 3.15:
https://docs.python.org/3.15/whatsnew/3.15.html
Binary builds:
https://github.com/heroku/heroku-buildpack-python/actions/runs/37947202278
Python 3.15 readiness status of the top 360 packages on PyPI:
https://pyreadiness.org/3.15/
Free-threaded variants (
3.15t) remain unsupported for now: there have been no requests for them yet, and third-party package support is still inconsistent (see https://py-free-threading.github.io/tracking/ and https://hugovk.github.io/free-threaded-wheels/).Closes #632.
GUS-W-20591281.