2.2. Updated internet drafts and published RFCs

• jCard: The JSON Format for vCard (RFC 7095)

• Non-Gregorian Recurrence Rules in iCalendar

• Support for iCalendar Relationships

• jCal: The JSON format for iCalendar

• Use of the Prefer Header Field in Web Distributed Authoring and Versioning (WebDAV)

• CalDAV Managed Attachments

• New Properties for iCalendar

• Timezone Service Protocol

• Calendar Availability(VAVAILABILITY)

• Event Publishing Extensions to iCalendar