HomePod is currently the sole speaker with AirPlay 2 functionality, but a bunch of Hi-Fi equipment vendors have announced bringing AirPlay functionality to their speakers and receivers by way of a firmware update.
Are you confused about what HomePod can and can’t play? If so, Apple has now updated HomePod’s technical specifications with a handy list of all the audio sources that the Siri-powered wireless speaker supports out of the box.
iOS 11.3 brought a laundry list of new features to iPhone and iPad today, including iMessages in iCloud, new Animoji, new health features, ARKit enhancements and more. Among those is support for AirPlay 2.