Just install Poser11. In the new Poser11 library, add your existing Poser10 runtime and you are ready to go. All existing content works in Poser11.

For Firefly renders, alle xisting material room setups work as before. If you want to use the enhanced "Superfly" render engine, and want to use the Cycles nodes, you can build a second material setup for the Superfly render engine. Both material setups "live" together in the Material room. Selecting one or the other render engine will automatically pick up the correct Material nodes.

Best regards, Tony