Apple has released macOS High Sierra 10.13.6, in a month after it released 10.13.5. The latest update brings AirPlay 2 multi-room audio support for iTunes that lets you control your home audio system and AirPlay 2-enabled speakers throughout your house and play music at the same time on multiple AirPlay 2-enabled speakers. The update also brings stability improvements and security updates. This might be the final macOS High Sierra update before macOS Mojave rolls out later this fall. Check out the complete changelog below.