* All changes in 2.2.2 plus:
* lib:
o freetype 2.3.6
+ Note from freetype developers: "A bunch of potential security problems have been found [and fixed in this release"
o pixman 0.11.4

* Xquartz fixes from xorg-server-1.3.0-apple21
* Support monitor hotplugging

* All changes in 2.2.0.1 plus:
* All packages updated to versions intended to ship as part of X11R7.4 (as of 2008.04.21):
* app:
o setxkbmap 1.0.4
o xinit 1.0.8-git-2008.04.26
+ Use CFProcessPath instead of argv⁰ trick
o xkbcomp 1.0.4
o xkbdata 1.0.1
o xkbevd 1.0.2
o xkbprint 1.0.1
o xkbutils 1.0.1
o xterm 235
* lib:
o cairo 1.6.4
o mesa 7.0.3
+ for libGLU, libglut, libOSMesa, Xfake, and Xephyr
o libxkbfile 1.0.5
o libXv 1.0.4
o pixman 0.10.0
* proto:
o dri2proto 1.1
o xf86driproto 2.0.4
* quartz-wm:
o Fixed "closing X11 window swaps spaces" bug
* server:
o xorg-server-1.3.0-apple20
+ Fixed multiple crash-causing bugs
+ Fixed cmd-tab to properly move all windows forward when entering X11.app
+ Enabled support for keyboard beep
+ Cleaned up multi-monitor support (still not completely bulletproof)

Follow Link for viewing Changes

http://trac.macosforge.org/projects/xquartz/wiki/X112.1.4#Changesin2.1.4

This is an Open Source X11 2.1.3 that many people use in place of X11 and is required for X11 builds of GIMP, for example (form wilberlovesapple). If this could be an updated version or a new product named X11 (Unnofficial) Then that is up to you.