CalDAV standards and extensions

The Calendaring Standards page on CalConnect.org have a list of RFCs and drafts that CalDAV implementations uses. The main RFC is 4791, all CalDAV servers must implement this RFC.

Sadly, the page on CalConnect is missing a couple of references.

• caldav-sharing
• caldav-notifications
• draft-daboo-carddav-directory-gateway

Those three extensions have been implemented in iCal Server and Calendar Server, so it's a good thing to learn them.

Update: the missing references have been added to the Calendaring Standards page.

If you wish to see which CalDAV servers is using extensions and new RFCs, I have built a (incomplete) list of CalDAV implementations and match them with the features found in the RFCs and extensions.