Change effective on 05 March 2020
The Python buildpack now detects versions of Django older than 1.11 and warns users to check the Django Roadmap to see if their version is still being supported.
Django 1.11 is nearing the end of its community support. Applications running Django 1.11 and below will continue to run on Heroku as long as the supported python versions are available, but users should consider upgrading to continue to receive security updates and for the best experience with Django.
For more information, check out the Django Project Roadmap.
For more information on running Python on Heroku, check out our articles on Python Support.