• Api: show maintenance release as version-number everywhere
• Api: truncate varchar for all DB types now, as MariaDB 10.3 also errors on to big content
• Api/Filemanager/WebDAV: fix SQL error if login error or WebDAV path contains non-ascii chars
• Calendar/CalDAV: store huge iCal attributes compressed to fix stalled sync of Outlook/Exchange events
• Calendar/Mail: tell user if an event has been already already deleted when viewing a meeting request
• Mobile theme: Fix inconsistent styling of submit buttons on login page, when browsing with Safari
• Filemanager: fix missing empty directory context actions
• Filemanager: treat GoodSync gsdata directory as hidden / not shown by default
• Filemanager/EPL/GoodSync: ignore gsdata directory for versioning and subscriptions
• Mail: implement new preference to configure mail identity label shown as mail folder header
• Addressbook: add site configuration to disable Last/Next Event column
• Projectmanager: move format for ID generation from config to settings to allow eg. group-specific IDs
• Extended changelog: https://help.egroupware.org/t/new-features-preferences-or-other-important-things-since-release-of-17-1/73323