Our fixes accepted by Cyrus IMAP
Three Convergent fixes merged into Cyrus IMAP: a CalDAV server crash on free/busy requests, HTTP/2 responses truncated past 64 KB, and the version number still exposed in calendars despite serverinfo: off.
Caldav
Meeting Invitations: answering an invitation from SnappyMail without ever building iTIP
A new open source SnappyMail plugin from Convergent: accept, tentatively accept or decline an invitation from the message view, with the reply produced by the CalDAV server (RFC 6638). Design, cancellations and SEQUENCE revisions, limits.
SnappyMail CalDAV: our standards-compliant fork, tested against Cyrus IMAP
Calendars in the SnappyMail webmail, backed by Cyrus IMAP's DAV. Why we forked Mailbux's CalDAV plugin, what we fixed (URL as configuration, RRULE, VALARM, CSP) and how invitations are delegated to the server (RFC 6638).