XFree86® Version Numbering Schemes 
 The XFree86 Project, Inc 
6 February 2005 
 The version numbering schemes used by XFree86 have changed from time to time.  The schemes used since version 3.3 are explained here. 
- 2.1. Development Branch 
- 2.2. Maintenance Branch 
$XFree86: xc/programs/Xserver/hw/xfree86/doc/sgml/Versions.sgml,v 1.9 2007/08/04 02:16:08 tsi Exp $