Are Rooms supported in Windows Mobile 10?

I know that Rooms were added to Windows Phone 8, but I've never used them. I've now got a Lumia 640, running Windows Phone 8.1 Denim, which I believe at some point will go to Windows Mobile 10. (I think it was mentioned here on Windows Central that would happen before the end of February.) So what I'd like to know is this, is the Rooms feature of Contacts in Windows Phone 8.1 supported in Windows Mobile 10? Or is there some other feature we should use? (I want to use this for my family.)