Just noticed that vSphere 4.1 Update 2 was released yesterday.
Excerpt from the release notes:
Whats New
- Support for new processors – ESXi 4.1 Update 2 supports AMD Opteron 6200 series (Interlagos) and AMD Opteron 4200 series (Valencia).
- Support for additional guest operating system – ESX 4.1 Update 2 adds support for Ubuntu 11.10 guest operating system. For a complete list of guest operating systems supported with this release.
To read the full release notes click here
Also, VMware vCenter Site Recovery Manager(SRM) 4.1.2 has been released.
See release notes here:
http://www.vmware.com/support/srm/srm_releasenotes_4_1_2.html