I’m frustrated by the fact that I can’t add songs to existing playlists that I have been building for years. This seems to be fairly basic functionality that has been unavailable since the upgrade. I struggle to find updates from Sonos which say when this functionality will be restored and wondered whether anyone in the community was any the wiser. Many thanks.

Sonos has committed to Sept/Oct for playlist editing.
 

https://support.sonos.com/en-ca/article/the-new-sonos-app-and-future-feature-updates

Thanks BMZ. Only a couple of weeks to wait. Hopefully!

 It’s already been more than a couple of weeks.