It looks like the 2227 build is no longer beta and they are slowly rolling it out to all boxes. I don't think there's anyway to tell when your box got the update. Release notes are often slow in coming. Hopefully they'll update the links to the documentation now that 3.0 is being rolled out. It's possible that the new firmware could affect you, but I don't remember any specific changes to the audio player. Is there something specific that isn't working properly?
-JT
Roku Community Streaming Expert
Help others find this answer and click "Accept as Solution."
If you appreciate my answer, maybe give me a Kudo.
I am not a Roku employee.