Apple today seeded the third beta of an upcoming tvOS 11.3 update to developers for testing purposes, two weeks after seeding the second beta
and just a day after releasing the tvOS 11.2.6 update
Designed for the fourth and fifth-generation Apple TV models, the tvOS 11.3 developer beta can be downloaded onto the Apple TV via a profile that's installed using Xcode and Apple Configurator.
The tvOS 11.3 update introduces support for AirPlay 2
, allowing the Apple TV to be added to the Home app as part of a HomeKit setup.
With AirPlay 2, you can play the same song on multiple Apple TVs in different rooms, and when AirPlay 2 officially launches, that functionality will extend to other AirPlay 2 devices like HomePod and AirPlay 2 compatible speakers.
Other new features in tvOS 11.3 include enhancements to Match Content support, automatic frame rate switching on the fourth-generation Apple TV (a feature that was added to Apple TV 4K in a past tvOS update), and automatic mode switching for AirPlay video sessions.