What Trueplay debacle?

Trueplay was unavailable to be newly or re-run

I think the OP means that iOS 17 wasn’t yet supported for TruePlay, and not something associated with Sonos release 15.8 or 15.9.

Why was the issue only corrected when sonos updated, if it was an iOS issue? It was still a problem as far as iOS 17.0.3 was concerned prior to sonos 15.9 release yesterday. Maybe I'm missing something?

In the past, they have updated the ‘approved’ TruePlay devices and operating systems without needing to update the controller app. I’ve always assumed it was a simple server side check to ensure the device/ OS in question was ‘flagged’ for inclusion in the ‘authorized’ list.