What's new
Bugfixes
- Calendar event from invite does not update #10963
- First 100 mails disappear from conversation list after list reload #10959
- Improve support for same event in different calendars #10883
- importing ics files with duplicate altered instances throws an error, and import fails #10851
- Delete an event after importing it in different calendars deletes the wrong entity #10711
- Cannot send event update without organizer #3288