Revisions
Displays each revision for the current design, as well as the top-level design entity, target device family, and target device for each revision.
A check mark indicates the current revision for the design. In addition, if you specified that the Fitter choose a target device for a revision, the Device column in the Revisions list contains the text AUTO for the revision.
You can select a revision in this list to set the revision as the current revision, delete the revision, or base a new revision on the selected revision.