Non exhaustive list of changes:
- fix new version checking behind a proxy
- rework WYSIWYG editor toolbar
- add a new hook for plugins to display data inside items forms
- fix dropdown translations
- fix entities restrictions on knowledge base items
- fix issues when manually adding network ports
- various API fixes
- fix creation of recurrent tickets
- fix calendar and WYSIWYG editor locales
- fix dependencies checks when not using composer
See changelog for details.