No, but there is a pretty good reason and solution.
Reason: There is no direct upgrade path from VDP guest OS SLES 11 SP1 in VDP 6.0.x to SLES 11 SP3, which is used for VDP 6.1. Support | How to upgrade to SLES/SLED 11 SP3
Solution: VDP 6.1 features a migration option when deploying a new VDP 6.1 appliance. You can import the existing backup jobs, replication jobs, etc. and attach the VMDKs that hold the backup data from the old appliance to the new VDP 6.1 appliance.