To everyone one:
In upgrading form 4.0 to 4.1 environment, does vCenter 4.1 communicate with the 4.0 servers?
What is noticeably gained in 4.0 to 4.1?
Something always breaks, what broke?
yes, vCenter 4.1 can manage ESX(i) 4.0.x Hosts, as well as VI3 Hosts
http://www.vmware.com/pdf/vsphere4/r40/vsp_compatibility_matrix.pdf
....as for what's new
http://www.vmware.com/support/vsphere4/doc/vsp_41_new_feat.html
check image. 4.1 manage 4.0
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