So the UCS elves have been busy and just released version 1.4 of our UCS firmware. Instead of summarizing the elements of 1.4 here, I’ll refer you to a most excellent post by my cohort M. Sean McGee (@mseanmcgee) which you can read here. A couple of my favorite new features include integration of the C-Series rack servers into UCS Manager, chassis and multi-chassis power capping on the B-Series, and a number of networking enhancements. You can find the full release notes here, but I’d suggest you start with the blog post first--kinda the Cliff Notes version.
The Cliff Notes version for the truly ADD would be Steve Chambers’: http://viewyonder.com/2010/12/20/ciscoucs-1-4-is-here/