Django-taggit

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* **Backwards incompatible:** Tag slugification used to silently strip non-ASCII characters
from the tag name to make the slug. This leads to a lot of confusion for anyone using
languages with non-latin alphabets, as well as weird performance issues.

Tag slugification will now, by default, maintain unicode characters as-is during
slugification. This will lead to less surprises, but might cause issues for you if you are
expecting all of your tag slugs to fit within a regex like ``[a-zA-Z0-9]`` (for example in
URL routing configurations).

Generally speaking, this should not require action on your part as a library user, as
existing tag slugs are persisted in the database, and only new tags will receive the
enhanced unicode-compatible slug.

If you wish to maintain the old stripping behavior, set the setting
``TAGGIT_STRIP_UNICODE_WHEN_SLUGIFYING`` to ``True``.

As a reminder, custom tag models can easily customize slugification behavior by overriding
the ``slugify`` method to your business needs.

`` Drop Django 2.2 support.

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* Add Python 3.10 support.
* Add Django 4.0 support.
* Drop Django 3.1 support.

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* **Backwards incompatible:** ``TaggableManager.set`` now takes a list of tags
(instead of varargs) so that its API matches Django's ``RelatedManager.set``. Example:

- previously: ``item.tags.set("red", "blue")``
- now: ``item.tags.set(["red", "blue"])``

* Fix issue where ``TagField`` would incorrectly report that a field has changed on empty values.
* Update Russian translation.
* Add Persian translation
* Fix issue for many languages where content types were not being properly translated.
* Provide translators additional context regarding strings in TagBase model.

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* Fix compiled Ukranian translation (which would cause a failure on load for this locale).
* Update compiled Danish translation.

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* Vendor in the `django-taggit-serializer` project (under `taggit.serializers`).
* Add Arabic translation.
* Add Ukranian translation.

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* Add Python 3.9 support.
* Remove Python 3.5 support.
* Add Django 3.2 support.
* Remove Django 1.11 and 3.0 support.
* Add Danish translation.
* Fix crashing that could occur with ``similar_objects`` in multi-inheritance contexts.
* Add support for custom fields on through table models with `through_defaults` for ``TaggedManager.add`` and ``TaggedManager.set``.