I just noticed iTunes 12.9 displays an error when trying to connect to my Denon 2112CI Receiver. This just started after updating iTunes the other day. I've read of others having this same issue but nobody can say if it's an iTunes bug or a permanent removal of Airplay functionality for some older speakers. I've reported this to Apple, but was wondering if anyone else has experienced this error?
https://discussions.apple.com/thread/8552060
https://discussions.apple.com/thread/8552060