Hi,
when 6.0 is GA, you can check the interoperability on this site:
VMware Product Interoperability Matrixes
Looking at older releases, I would expect the vCenter Server to be a good bit backwards compatible.
Tim
You'll have to wait until the official release for a definite answer, but I'm sure it will support managing all 5.x ESXi releases and update levels.
ESX(i) 4.x is out of support since May last year, so I wouldn't expect vCenter 6.0 to support it. If you haven't updated from 4.x to 5.x yet, a year with lack of support and updates should be reason enough to do so independently from a 6.0 release.
Ok thanks both.
We are on 5.5 so no need to upgrade More of a question if we ever get a strange request from a customer to be on an earlier version of ESXi.
Another question is I'm presuming you can only vMotion from one vCenter to another if both vCenters are 6.0?