---
upgrade:
  - |
    Django 1.11, 2.0 and 2.1 are no longer supported. These are no longer
    supported upstream and most distributions provide a newer version.
  - |
    djangorestframework 3.6, 3.7, 3.8 and 3.9 are no longer supported. These
    were only used with Django 1.11 to 2.1 and are not compatible with any
    version now supported by Patchwork.
  - |
    django-filter 1.1.0 is no longer supported. This was only used with Django
    1.11 and is not compatible with any version now supported by Patchwork.