Definitions for "Revision number"
Sequential alphanumeric designators used on documentation and data to identify and control changes. The revision number or letter of a drawing should be advanced (A to B, etc.) any time the drawing is modified, to differentiate it from the previous version. In some companies, letters are used to denote designs not released for production, and numbers to denote modifications to production designs. See documentation/data release and dash number.
See: version number.
A number indicating which revision of the file is being referred to. Revision numbers start at 1, and increase sequentially. To refer to a particular revision of a file, append the pound sign and the revision number to the name of the file; e.g., the tenth revision of file foo would be referred to as foo#10. The revision specification foo#10 is actually the same as the revision range specification foo#1,#10, since revision ten of the file encompasses all the changes made in the file from revision 1 to revision 10.