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**Breaking changes**
* Compatibility with new django-crispy-forms (2.0.0+)
* New explicit dependency to ``crispy-bootstrap4``.
* You should adapt configuration by adding `crispy_bootstrap4` in your INSTALLED_APPS and check your templates inheritance.
**Improvements**
- Due to new crispy forms, there is new login form
- Use HTML `button` tag for create/update forms
- Prevent multiple submissions of create/update form