Regressing vROPs Upgrade

Hello

We are looking at documenting vROPs upgrade 6.0 to vROPs 6.6.1 (2 step 6.3.1 first).  Before any upgrades we will snapshot the vROPs server (only 1).  We have been asked to provide regression steps.

If we wanted to go back to, could we simply revert to the snapshot image?

Thanks