v0.19.0

heroku/python

Added

• Added support for Python 3.13. (#280)

v0.18.1

heroku/python

Changed

• Updated the Python 3.12 version alias to Python 3.12.7. (#276)

v0.18.0

heroku/python

Added

• The Python version can now be configured using a .python-version file. Both the 3.X and 3.X.Y version forms are supported. (#272)

Changed

• pip is now only available during the build, and is no longer included in the final app image. (#264)
• Improved the error messages shown when an end-of-life or unknown Python version is requested. (#272)

v0.17.1

heroku/python

Changed

• Updated the default Python version from 3.12.5 to 3.12.6. (#266)

v0.17.0

heroku/python

Added

• Added initial support for the Poetry package manager. (#261)

v0.16.0

heroku/python

Changed

• App dependencies are now installed into a virtual environment instead of user site-packages. (#257)
• pip is now installed into its own layer (as a user site-packages install) instead of into system site-packages in the Python layer. (#258)

v0.15.0

heroku/python

Changed

• Updated the default Python version from 3.12.4 to 3.12.5. (#244)
• Updated pip from 24.1.2 to 24.2. (#236)

v0.14.0

heroku/python

Removed

• Stopped explicitly installing setuptools and wheel. They will be automatically installed by pip into an isolated build environment if they are required for building a package. (#243)

v0.13.0

heroku/python

Changed

• Stopped manually creating a src directory inside the pip dependencies layer. pip will create the directory itself if needed (when there are editable VCS dependencies). (#228)
• Stopped setting CPATH and PKG_CONFIG_PATH at launch time. (#231)
• The bin directory in the pip dependencies layer is now always added to PATH instead of only when an installed dependency has an entry point script. (#232)
• The pip cache layer is now exposed to pip invocations in later buildpacks. (#234)

v0.12.1

heroku/python

Changed

• Updated pip from 24.1.1 to 24.1.2. (#225)
• Updated setuptools from 70.1.1 to 70.3.0. (#224)