Now though xf86-video-intel 2.6.3 is out with two regression fixes. One bug broke initialization with the UXA acceleration architecture when the driver was running in DRI1 mode. The other bug caused pixmap allocation on the i915 to consume large amounts of memory. Both bugs have been fixed and the 2.6.3 release has been tagged.
The release announcement and source download links can be found on the X.Org mailing list.