I just updated to firmware 7.8 and it support airplay 2.
I connect the analog out(instead of optical) but the sound is awesome!!! I think the internal dac is very good.
Airport Express need to set to join Network and airplay enable.
You can even see it in your Home app.
This post has been edited by gogo2: Jun 20 2019, 11:59 PM
Airport Express 2 Airplay 2, Great sound