v6.5.3

heroku/python

Changed

• The Python 3.14 version alias now resolves to Python 3.14.6. (#578)
• The Python 3.13 version alias now resolves to Python 3.13.14. (#578)

v6.5.2

heroku/python

Changed

• Updated pip from 26.1.1 to 26.1.2. (#576)
• Updated Poetry from 2.4.0 to 2.4.1. (#576)
• Updated uv from 0.11.11 to 0.11.19. (#576)

v6.5.1

heroku/python

Changed

• The Python 3.14 version alias now resolves to Python 3.14.5. (#569)

v6.5.0

heroku/python

Changed

• Updated pip from 26.0.1 to 26.1.1. (#563)
• Updated Poetry from 2.3.4 to 2.4.0. (#564)
• Updated uv from 0.11.6 to 0.11.11. (#562)
• The forbidden env vars check now also rejects POETRY_VIRTUALENVS_IN_PROJECT. (#566)
• Updated the wording of the message shown when buildpack detection fails to also mention uv.lock. (#567)

v6.4.1

heroku/python

Changed

• Updated Poetry from 2.3.3 to 2.3.4. (#553)
• Updated uv from 0.11.3 to 0.11.6. (#552)

v6.4.0

heroku/python

Added

• Added support for Ubuntu 26.04 (and thus Heroku-26 / heroku/builder:26). (#550)

v6.3.0

heroku/python

Changed

• The Python 3.14 version alias now resolves to Python 3.14.4. (#548)
• The Python 3.13 version alias now resolves to Python 3.13.13. (#548)
• The forbidden env vars check now reports all forbidden env vars found rather than only the first. (#542)
• The forbidden env vars check now checks for known problematic Poetry env vars too. (#542)

v6.2.0

heroku/python

Changed

• Updated Poetry from 2.3.2 to 2.3.3. (#532)
• Updated uv from 0.10.9 to 0.11.3. (#535)

v6.1.0

heroku/python

Changed

• Updated uv from 0.10.7 to 0.10.9. (#523)
• Switched to downloading uv from releases.astral.sh instead of GitHub releases. (#524)

v6.0.1

heroku/python

Changed

• The Python 3.12 version alias now resolves to Python 3.12.13. (#521)
• The Python 3.11 version alias now resolves to Python 3.11.15. (#521)
• The Python 3.10 version alias now resolves to Python 3.10.20. (#521)