You can view the revision history of any activity that is controlled by versioning. The revision history shows the number of times a particular activity has been checked in and the details of each revision.
Also, in revision history, following details of each revision are displayed.
Date/Time: Displays the date and time when the activity has been checked in to the repository.
User Name: Displays the name of the user who checked-in the activity.
Comment: Displays the comment that the user has provided while check-in the activity.
Steps to view revision history of an activity
Click the Actionicon for an activity for which you want to view the Revision History. A list of possible actions is displayed.
Click Revision History
You'll be able to view all the revisions for the selected activity.