My apologies for misunderstanding the question Douglas.
Let me see if I can provide more help this time.
Yes, if you upgrade the application in vmware on your PC or whatever you are using you will be able to use that DRS backup to restore on your production environment. This does not void any warranty. I think you will have to keep in mind is the licensing which will be tied to the information such as IP address, DNS, NTP, etc, so you will want to ensure that your "staging" PC uses the same values as your production, in fact DRS works only on the same IP address/hostaname/password.