• Upgrade Heroku runtime to python-3.8.6
• Switch django-girders to django-composed-configuration
  • Change from django_girders.configuration import ... to from composed_configuration import ...
  • Change in settings.py: BASE_DIR = Path(__file__).resolve(strict=True).parent.parent
• Upgrade s3-file-field to >= 0.0.12
• Set UserFactory's username field as the email