VC is on version 20510539 ESXi is on 20502893
Cannot go to 7 from 6.5 according to the Upgrade matrix. 6.7 is also a dead end.
What is the best option for 7.X starting from scratch ? Not what I imagined starting again from scratch.
What update to choose for VC 7. (latest or earlier version)
You might check https://interopmatrix.vmware.com/Upgrade?productId=1
Just migrate to 7.0u3latest