The Calendar audit log feature is available since version 4.2.0 on Data Center/Server. It helps increase transparency in the changes made to calendars. The log displays the following types of events:

  1. Who created events

  2. When an event was created

  3. Who modified an event

  4. Who changed the time of an event

  5. Who modified a calendar

  6. Whether a reminder was sent for an event

  7. When a reminder was sent for an event

The Calendar Change Log does not display any changes made to tasks. These changes can always be found in the activity log of the task itself.