I was interested in the new update but not sure how.
No message appears when I exited and came back in to Muse.
When I hit updates, a new panel opens about CC programs, but nothing next to Muse.
I currently have
I did have to exit out of CC as you mentioned and log back in. I then went back in and saw UPDATE. clicked it. It said close Muse to continue. I did that and the UPDATE pop up screen went away.
realized I had to go to APPLICATIONS< Adobe CREATIVE CLOUD Folder and open that and it worked