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.
Cyrus-Imap
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 CardDAV: a fork that does not delete your contacts
Contact synchronisation between SnappyMail and Cyrus IMAP. Why we forked Mailbux's CardDAV plugin: a hardcoded URL rewritten at every login, and a two-way sync force-re-enabled on each sign-in — and why that last one destroys contacts.
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).