"Extend alarm support to allow for cross-device dismissal, proximity triggers based on location, default alarms in CalDAV"

Sharing calendars and tasks across multiple devices is great - having the alarms go off on all of them isn’t. This extension to CalDAV (the standard calendar service protocol) will allow for effective user management of alarms, including choosing which device(s) should enable each alarm, and the form of the alarm.

Details: TC CALDAV