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Release announcement: https://blog.python.org/2026/04/python-3150a8-3144-31313/ Changelogs: https://docs.python.org/release/3.14.4/whatsnew/changelog.html#python-3-14-4-final https://docs.python.org/release/3.13.13/whatsnew/changelog.html#python-3-13-13-final Binary builds: https://github.com/heroku/heroku-buildpack-python/actions/runs/24106929682 https://github.com/heroku/heroku-buildpack-python/actions/runs/24106935699 GUS-W-20590503. GUS-W-20590550.
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## heroku/python ### Changed - The Python 3.14 version alias now resolves to Python 3.14.4. ([#548](#548)) - The Python 3.13 version alias now resolves to Python 3.13.13. ([#548](#548)) - The forbidden env vars check now reports all forbidden env vars found rather than only the first. ([#542](#542)) - The forbidden env vars check now checks for known problematic Poetry env vars too. ([#542](#542))
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## heroku/python ### Changed - The Python 3.14 version alias now resolves to Python 3.14.4. ([#548](heroku/buildpacks-python#548)) - The Python 3.13 version alias now resolves to Python 3.13.13. ([#548](heroku/buildpacks-python#548)) - The forbidden env vars check now reports all forbidden env vars found rather than only the first. ([#542](heroku/buildpacks-python#542)) - The forbidden env vars check now checks for known problematic Poetry env vars too. ([#542](heroku/buildpacks-python#542))
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Release announcement:
https://blog.python.org/2026/04/python-3150a8-3144-31313/
Changelogs:
https://docs.python.org/release/3.14.4/whatsnew/changelog.html#python-3-14-4-final
https://docs.python.org/release/3.13.13/whatsnew/changelog.html#python-3-13-13-final
Binary builds:
https://github.com/heroku/heroku-buildpack-python/actions/runs/24106929682
https://github.com/heroku/heroku-buildpack-python/actions/runs/24106935699
GUS-W-20590503.
GUS-W-20590550.