Python 3.9.0 is now available

Change effective on 06 October 2020

Python (CPython) 3.9.0 is now available on Heroku.

To read about what’s changed, see What’s New In Python 3.9.

The Python buildpack has recently migrated its assets to a new S3 bucket. As such apps will need to be using the latest version of the Python buildpack in order to use newly released Python versions.

For more information, see our page on Python Support.