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* Added **Django 4.0** compatibility. Thanks to kevinmarsh (760)
* Add tests for **Django 4.0**, **Python 3.9** and **Python 3.10**.
Thank to kevinmarsh (739)
* Introduce CODE_OF_CONDUCT.md for the project. Thank to hugovk (758)
* Add precision in the documentation for PipelineCachedStorage.
Thank to gatsinski (739)
* Drop support for slimit compressor (765) due to package not released
an official version for Python 3 and not any new package release from 2013.
* Edit github actions matrix: django 3.2.9 support python 3.10, remove
python 4.0 (doesn't exist) and exclude pypy-3.8 for django-main.
* Add .pre-commit-config.yaml. Thanks to hugovk (762)
* Update package.json due to CoffeeScript on NPM has moved to "coffeescript"
* Update setup.py with Django 4.0 and Python 3.10