2026-08-20 Calendar API
- Calendars now always report an
is_epilot_defaultflag indicating whether a calendar is the organization's default calendar — returned byGET /v1/calendar,POST /v1/calendar,POST /v1/calendar/sources/outlook, andGET/PATCH /v1/calendar/{calendar_id} calendar_idis no longer required when creating an event throughPOST /v1/calendar/events— the event is placed in the default calendar when it is omittedDELETE /v1/calendar/{calendar_id}can now answer with409when the calendar cannot be deleted