This is not a minor update in my book. It can be considered one because no new features have been added, but boy oh boy, talk about polishing an operating system.
My Homepods are basically perfect now. Everything is fantastic performance wise. Been testing for hours now. No popping/static noises with lossless tracks (been suffering this since lossless was released for the homepods with 15.1), no skipping of songs within an album/playlist, no glitches, anything.
Music playback is perfect (as it should be). But is not only that. Everything is so much faster. So much. Siri responses. Homekit interaction. Even music playback itself.
Let me explain.
There is no play/pause delay anymore (I dont use Airplay, just play Apple Music natively on the homepods using Siri or remote controlling them from IOS or Mac OS, which is not Airplay). Music takes less time to load and actually start playing now. If I ask Siri to go to the next song, she´ll do it faster now. Gapless playback is completely seamless, no glitches whatsoever. No pauses/waiting time in between lossless tracks anymore.
Even sound quality has improved, to the point that I have turned off "reduce bass", now (I had it enabled since IOS 15 came out). There is more separation now between the bass and the mids, and more detail as well.
Seriously, I cant believe that Apple has put themselves together when it comes to the homepod OS, finally.
PS: Pairing with the Apple TV (updated to 15.5.1 as well), is so much faster too. When selecting as the default audio output I have to wait barely nothing for the homepods to be operative as such. Before, I had to wait quite a few seconds.