Apple released tvOS 12 for the fourth generation Apple TV and Apple TV 4K on Monday. The update for Apple's set-top entertainment box includes Dolby Atmos support, new screensavers and more.
You need a Dolby Atmos certified audio system to take advantage of the new audio function. Films must also be encoded for Dolby Atmos.
tvOS now contains screensavers that have been recorded from the International Space Station. You can also use your Apple TV Remote to view details about each screen saver.
You also get the option to enter passwords automatically, plus Zero Sign-on for cable television services. With Zero login, Apple TV can detect which cable service you have and automatically log in and download apps for available channels. Cable services must support the function, so not everyone can benefit from Zero Sign-on.
tvOS updates are automatically installed, but depending on the timing you may have to wait a few days before that happens. You can force the update to install by launching the Settings app on your Apple TV and then selecting System gt; Software update.
tvOS 12 is a free upgrade and is available for Apple TV (fourth generation) and Apple TV 4K.