While the release of X.Org Server 1.12 wasn't as drawn out as MythTV 0.25, this release is coming about a month late due to Keith Packard, the xorg-server release manager, taking a bicycling trip through New Zealand. However, it's now available following the revised release plans (and the developers are now hitting targets much better than in the past).
While this six-month update to X.Org Server 1.12 brings X Input 2.2 with multi-touch and other input improvements, there isn't too much to get excited for beyond that. There's lots of bug-fixes and other miscellaneous work, but nothing that's really exciting on the graphics side or elsewhere.
What is still missing from the mainline X.Org Server is the long-desired RandR 1.4 support, which would allow for NVIDIA to better support RandR 1.2+ by their proprietary driver. RandR 1.4 is also expected to support per-CRTC pixmaps, but there's new plans for making this update come about.
This 1.12 series release also doesn't carry the GLX_ARB_create_context work.
The very brief release announcement for X.Org Server 1.12 can be found on the mailing list. The 1.12 series will be succeeded by the 1.13 release, which will arrive prior to Oktoberfest.
Previously there was also talk of doing the X.Org 7.7 katamari with the 1.12 xorg-server release. However, I haven't heard anything about X.Org 7.7 in a while but hopefully the gathering of these X.Org packages will happen in the coming weeks.
The NVIDIA binary blob is compatible with X.Org Server 1.12 already, but it's time for the game of seeing how long it takes AMD to properly support the latest release of the upstream X.Org Server...