• Django 2.2 is no longer supported. #8662
• Django 4.1 compatibility. #8591
• Add --api-version CLI option to generateschema management command. #8663
• Enforce is_valid(raise_exception=False) as a keyword-only argument. #7952
• Stop calling set_context on Validators. #8589
• Return NotImplemented from ErrorDetails.__ne__. #8538
• Don't evaluate DateTimeField.default_timezone when a custom timezone is set. #8531
• Make relative URLs clickable in Browseable API. #8464
• Support ManyRelatedField falling back to the default value when the attribute specified by dot notation doesn't exist. Matches ManyRelatedField.get_attribute to Field.get_attribute. #7574
• Make schemas.openapi.get_reference public. #7515
• Make ReturnDict support dict union operators on Python 3.9 and later. #8302
• Update throttling to check if request.user is set before checking if the user is authenticated. #8370