I have lost access to both of my subs, both Sonos Five speakers and the arc since the upgrade.  Connection to the 2 Move speakers remain OK.  Tried reconnecting the missing equipment but the new app doesn’t see them at all.  By what I’m hearing, most Sonos equipment owners have been affected by this new release.  Totally irresponsible for this update to be released before proper testing was done. 

Swipe up on the player controls on the bottom of the screen. Tap on the room. Careful as you use it though as there is a bug that will change the room you are playing to. There are no advanced queue controls.