• Calendar: initial load speed improvement
• CalDAV/OutlookSynchronizer: reject invitations when client deletes them without appropriate rights in his calendar
• CalDAV/Calendar: always set organizer and participants outside own calendar
• Filemanager/Sharing: fix lost session on first load in sharing links with Firefox
• Collabora: fix issue of inserting an image into document pops a rename dialog
• Collabora: fix limit of one samba connection per person
• Admin: add copy account action
• Html Editor: add fullscreen feature into html editor
• Html Editor: add 9pt, 9px, 11pt and 11px into Html editor's font options
• Timesheet: fix project link was missing when changing project after clicking "Save & New"
• Mail: fix mail acl can't save or retrieve after changing mailbox via folder selectbox
• Projectmanager: add preference to force filemanager subdirectories
• All apps: fix error closing / updating window in Chrome 80+
• RocketChat: fix diverse connection and status update errors
• Add possibility to set the APCu shm_size
• Change auth method for Sieve
• Change default date range in calendar listview
• Updated translations for EL, SK, BG and DE
• Update many icons => svg
• extended changelog