A week or so ago the Sonos app on my OSX Mac (10.11.6) got stuck. A dialog window popped up and recommended an update. I clicked "Let's do this" and the updater got stuck mid process. Unable to quit /cancel. Only option was to force-quit.
Work around: I repeated the above process 2x and decided to get a fresh download of the 10.2 installer. Doing a fresh install from tis installer worked easily and correctly.