Planning to upgrade vCenter 5.0 to 5.5 in the near future. Half of our hosts are ESX 4.0 and the other half ESXi 5.0. Will host agents need to be upgraded as part of the vCenter upgrade ? If so,
is that something we can get back to at a later date or have to do during the same update time window ? We currently do not use Update Manager. How easy is it to use Update Mgr. to do the agent
updates ? Or can they be done manually host by host ? Thanks.