- update to 6.5.1:
* Avoided calling ``static()`` if ``CKEDITOR_BASEPATH`` is defined.
* Fixed ``./manage.py generateckeditorthumbnails`` to work again after the
image uploader backend rework.
* CKEditor 4.19.1
* Stopped calling ``static()`` during application startup.
* Added Django 4.1
* Changed the context for the widget to deviate less from Django. Removed a
* few template variables which are not used in the bundled
* ``ckeditor/widget.html`` template. This only affects you if you are using a
* customized widget or widget template.
* Dropped support for Python < 3.8, Django < 3.2.
* Added a pre-commit configuration.
* Added a GitHub action for running tests.
* Made selenium tests require opt in using a ``SELENIUM=firefox`` or
``SELENIUM=chromium`` environment variable.
* Made it possible to override the CKEditor template in the widget class.
* Changed ``CKEDITOR_IMAGE_BACKEND`` to require dotted module paths (the old
identifiers are still supported for now).