Replied to https://martymcgui.re/2017/10/25/094354/

My Sonos desktop app made the same forced update. The “Check for Updates” dialog had a tantalizing “Later” button, but it took me back to this same useless screen.

The release notes for the update to 8.1 say only that it “delivers support for the all-new Sonos One, the smart speaker for music lovers” with a link to buy the new device.