Has anyone seen RAAT come up on Roon?

[Drifter]

What newsletter was this? Can you post the info here?

Yes, i have the same news from Devialet.
According them, the Expert series is now roon ready, you just need to update the new software.
What´s this means?

If you load v13.1, you should see a new audio output for the Devialet in Roon.
This will be the connection via RAAT. So the Devialet is now a recognised Roon endpoint and Roon no longer needs to talk to the Devialet via the Air protocol (which is a proprietary Devialet invention).