Xorg versions

distro xserver xorg

Debian 5 1.4.2 7.3

Debian 6 1.7.7 7.5

Debian 7 1.12.4 7.7

Debian 8 1.16.4 7.7

Ubuntu 10.04 1.7.6 7.5

Ubuntu 11.04 1.10.1 7.6

Ubuntu 12.04 1.11.4 7.6

Ubuntu 14.04 1.15.1 7.7

Centos 5.8 1.1.1 7.1

Centos 6.5 1.13.0 7.6

Suse 12.1 1.10.4 7.6

Suse 12.3 1.13.2 7.6

Fedora 20 1.14.4 7.7

release dates

Xorg 7.1 2006-05-22

Xorg 7.2 2007-02-15

Xorg 7.3 2007-09-06

Xorg 7.4 2008-09-23

Xorg 7.5 2009-10-26

Xorg 7.6 2010-12-20

Xorg 7.7 2012-06-06