Python 3.14.5 is now available

Change effective on 11 May 2026

Python 3.14.5 is now available for use by Python apps on Heroku.

In addition, we have updated the Python 3.14 major version alias to resolve to this new Python patch version.

We strongly recommend that you use a major version alias when specifying a Python version for your app instead of pinning to an exact patch version, so that your app receives the latest Python security updates each time you build it.

See Specifying a Python Version for details on how to configure the Python version for your app.