I see postings of some months back in the archives about this, but I wonder what the latest is?

We have a cluster of 740s running DOT 5.3D11 Each filer has an Overland Data DLT7000 with 15-tape mini library. Our Solaris 2.6 NetBackup server (running NetBackup 3.12) seems to be directing NDMP backups to the local tape drives without any substantial problems. Have I got a "lucky guess" of an OS rev here? Is anyone doing NetBackup NDMP on any other release level successfully?