Following many delays, Microsoft have finally released CRM 2011 Update Rollup 12.
You can catch up on the release exploits here.
If you'd rather download the update or read about what's new in it, go right ahead.
Just a friendly tip, I suggest waiting at least 3-4 weeks before deploying this update to any production/live environment.
The updated SDK is also available and is now at build 5.0.13.