X.Org and XFree86 Version Numbering Schemes

The XFree86 Project, Inc


Updated for X11R6.8.1 by Keith Packard and Kevin E. Martin

17 September 2004

X.Org has adopted the same basic numbering scheme used by the XFree86 Project, Inc. for their releases. The actual numbers are different, but the basic scheme is the same. This document reflects the policy that X.Org uses. The version numbering schemes used by XFree86 have changed from time to time.

1. Releases, Development Streams and Branches

2. Current (new) Version Numbering Scheme

2.1. Development Branch
2.2. Stable Branch

3. Finding the X.Org X Server Version From a Client