8.1 Remote Filtering server with 8.0 Policy Server.

I have to move my Remote Filtering server (RFS) to a new DMZ. Everything is on 8.0.

For a few reasons, the plan is to build a new RFS in the new DMZ, and migrate clients to it in a phased 8.1 upgrade.

Is it ok to upgrade the RFS server and clients to 8.1 for use that with an 8.0 management server until I can get to that one?

* It's a Windows software implementation

Thanks