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Major release to upgrade to modern backend supports and some other improvements.
Your project need to upgrade to the new requirements supports to be able to migrate to
this version and further.
* Removed support for Python less than 3.8;
* Removed support for Django less than 3.2;
* Removed support for DjangoCMS less than 3.11.x;
* Added support for Python from 3.8 to 3.10;
* Added support for Django from 3.2 to 4.1;
* Added support for DjangoCMS from 3.11.x;
* Added new field ``features`` on every block, this field won't be showed on default
installation since there is no defined features. User have to define them in
respective plugin settings;
* Added new plugin ``container``;
* Updated default plugin templates, it just inherits from the test one. User will have
to copy the respective plugin test template to create their own and define them in
settings;
* Upgrade package setup, Makefile, documentation configuration, Tox configuration;
* Removed included ``SmartMedia`` stuff in profit of ``django-smart-media``
requirement;
* Rewrited tests;
* Renamed default settings module from ``settings`` to ``defaults``;
* Documentation has been updated for the new plugin ``Container`` and for installation
document. A next version should comes further to restructurate documentation for
improvements;
* Added modern sandbox frontend with ``bootstrap=^5.1.3`` built with Node.js;