X Server 1.7
was released back in October
with support for X Input 2.0, Multi-Pointer X, and other improvements after having arrived several months late
. Since that initial 1.7 release some five months ago there have been new stable updates / point releases made available quite regularly. These updates incorporate bug and security fixes -- some of which work has been back-ported from the current X Server 1.8
code that should be released towards the end of March. X Server 1.7.5, however, was just released and this will likely be the last official X.Org update to the xorg-server 1.7 series.
X Server 1.7.5 doesn't have much to offer beyond the 1.7.5 release candidates
from weeks ago, but mostly smaller changes scattered throughout the X Server code-base. Pater Hutterer in announcing the X Server 1.7.5 release had mentioned, "This one is the last scheduled update. The patch flow is slow enough now to
stop the fortnightly tarballs and do releases on a need-per-need basis." In other words, an X Server 1.7.6 release could come about, but only if the need really arises with an unforeseen situation.
The X Server 1.7.5 release announcement can be read on the X.Org mailing list
. X Server 1.8 should be released in just over a month, but some distributions releasing in the coming months (such as Ubuntu 10.04 LTS) are sticking with the X Server 1.7 until H2'2010.