Upgrading SEP 11 to SEP 12.1
We are about to upgrade our existing SEP 11 RU6 MP2 environment to SEP 12.1 RU1 MP1 and I just want to confirm my understanding of the documentation I've read.
1. Do we upgrade the management server to SEP 12.1 RTM then to 12.1 RU1 and finally to 12.1 RU1 MP1?
2. Do we have to upgrade the clients in stages as well, or can we leave them at 11 RU6 MP2 until the SEPM is complete and then upgrade them to 12.1 RU1 MP1?