You can check out all the additions and release notes <a href="http://www.cisco.com/en/US/docs/unified_computing/ucs/release/notes/OL_24086.html#wp56441" target="_blank">here</a>-- but some of the cooler features I know I've been waiting to see are:

- FibreChannel  storage can now be directly connected to the UCS 6100 with default zone  policy (No zone configuration allowed in the 6100 but can be inherited  from an upstream MDS switch).

<a name="wp179877"></a>- The UCS C200, C210 and C250 servers can now be managed directly from UCS Manager. Integration details are available in the<a href="http://www.cisco.com/en/US/products/ps10493/prod_installation_guides_list.html"> C-series server installation guides</a>. Please contact your Cisco representative for additional information on connectivity and compatibility requirements.

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And last but not least, I thought FabricSync sounded pretty good.

- The  UCS 6100 synchronizes their mac-addresses between them. It works along  with FabricFailover feature to provide faster VNIC fail over for Bare  metal and brings HA to Hyper-V virtual switch networks. It is always  turned on.

Very cool stuff-- and all done with software upgrades.

UPDATE: Saw this and had to add it-- there are other posts on the blog about the process of updating firmware using FTP. Was kind of a pain to get going, but they've addressed the issue

"The need for setting up SCP/SFTP for image file  uploads is now optional since a direct upload from the laptop or other  UCS Manager client to UCS Manager is now possible."