I can probably live with the updated Sonos app, but not if I can’t rescan and update my local Music Library.  Half the music I listen to within my Sonos system exists on my network attached storage, which I add to regularly.  In the new app I cannot find the manage/update library command that I have used for for years.  Am I looking in the wrong places?  Is updating the music library no longer allowed?  No longer necessary? 

Although the Sonos App update is brutal (particularly when trying to program music for different rooms), the primary value of Sonos for me has been the ease with which I previously was able to access the thousands of music files I have stored on my NAS.