• Mail: New option "Name and domain" to show e.g. "John Smith (example.org)" set under "Information to show on email tag"
• Mail: fix diverse problems of rich-text editor, if small paragraphs are used
• Mail REST Api: added reply to an uploaded eml file (with optional preset body and attachments)
• REST Api: allow to create new fields with PATCH for application/json content-type and error on not existing custom fields
• Adressbook/Calendar/REST: fix not parsed custom fields
• Addressbook: Fix distribution list rename
• Api: Fix favorites button in nextmatch header did not work
• Calendar/CalDAV: new calendar-config to allow party-crashers with email matching a given regular expression
• Calendar: update holidays with new thunderbird.net URLs/data for a lot more countries
• Filemanager: fix not working setting "No Access" permission on directories e.g. to hide (unwanted) group-directories
• OpenIDConnect: allow to show as button on login page to use together with regular password login
• Importexport: Fix import through dialog fails
• Tracker: Fix missing assigned users with some access / group configurations
• ActiveDirectory: optionally also use/import groups of type distribution-list
• EPL S3: fix not working upload of backups