A couple of fixes in the previous release candidates broke new things, and thanks to
the extensive testing some more issues were discovered.

Bugfixes
--------

* [#1337] Made the component key for form fields required
* [#1348] Fixed restoring a form with multiple steps/logics attached
* [#1349] Fixed missing admin-index menu in import form and password change template
* [#1368] Updated translations
* [#1371] Fixed Digid login by upgrading django-digid-eherkenning package

New features
------------

* [#1264] Set up and documented the Open Forms versioning policy
* [#1348] Improved interface for form version history/restore
* [#1363] User uploads as registration e-mail attachments is now configurable
* [#1367] Implemented hashing identifying attributes when they are not actively used

Project maintenance
-------------------

* Ignore some management commands for coverage
* Add (local development) install instruction
* Open redirect is fixed in cookie-consent, our monkeypatch is no longer needed
* Further automation to bundling the correct SDK release in the Open Forms image
  This simplifies deployment quite a bit.
* [#1301] Extensive testing of a new approach to display the submitted data, still opt-in.
* Add more specific Formio component type hints