Restore tapes from Backup Exec 12.5 on Server 2012 R2 with Backup Exec 2012R3

Hi

Im trying to plan a disaster recovery test for a customer.

They are running a couple of HyperV 2008R2 Servers. They are backup by a Backup Exec 12.5 with VM addon down to a HP autoloader.

Now we need to test that we can restore it at a second site with a single tapeloader. Is it possible to restore Backup Exec 12.5 VM backups using Backup Exec 2012, on a Hyper-V 2012R2. Or do we need to use the exact same OS and Backup Exec version?