With Mesa 7.9
on the way, Intel has just released the xf86-video-intel 2.13 release candidate as part of their quarterly updates to their open-source Linux driver stack. There aren't any major features as part of the Intel 2.13 DDX driver update, but there are a good number of bug-fixes.
The xf86-video-intel 2.13 RC1 release announcement can be found on the Intel mailing list
. Intel's Chris Wilson is responsible for a bulk of the changes to be found over the past few months. The final release of this 2.13 driver should come by early October.