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* **Improvement** - [ 90_, 36_ ]: Finding available approvals has been speeded up ~x400 times at scale
* **Improvement** - 92_ : It is mandatory to provide initial state by the system user to avoid confusion and possible mistakes
* **Improvement** - 93_ : Tests are revisited, separated, simplified and easy to maintain right now
* **Improvement** - 94_ : Support class level hooking. Meaning that, a hook can be registered for all the objects through the class api
* **Bug** - 91_ : Callbacks get removed when the related workflow object is deleted
* **Improvement** - Whole ``django-river`` source code is revisited and simplified
* **Improvement** - Support ``Django v2.2``
* **Deprecation** - ``Django v1.7``, ``v1.8``, ``v1.9`` and ``v1.10`` supports have been dropped
.. _36: https://github.com/javrasya/django-river/issues/36
.. _90: https://github.com/javrasya/django-river/issues/90
.. _91: https://github.com/javrasya/django-river/issues/91
.. _92: https://github.com/javrasya/django-river/issues/92
.. _93: https://github.com/javrasya/django-river/issues/93
.. _94: https://github.com/javrasya/django-river/issues/94