Funny, after helping my client upgrade with CC, the next hurdle was getting the stupid faces thing turned off. It hogs the app once it starts, so we finally managed to turn it off, but had to restart before we could get 5 catalogs updated. What a pain.
There was a CC menubar app update running and it never seemed to get done, but we installed LR6 right over it. Perhaps it will finish whatever it was doing in the next week.