You can insert a revision table (block) and related revision symbols in a
drawing.
Insert a revision table into a drawing to track document revisions, including revision symbols. In addition to the functionality for all tables, you can select:
- Revision symbol shapes
- Alphabetic or numeric sequences
Revision symbols create notes with borders connected by properties to the revision table. The current revision number or letter is used.
The latest revision also appears under REV
in the lower-right corner of a sheet format each time you create a new revision row and
rebuild your drawing 
.