https://wccftech.com/tvos12-brings-dolby-atmos-certification-hdr-content-and-more-for-apple-tv/

It’s that time of the year again when Apple announces new features for all their products. iOS 12 has received some much-needed features and so has watchOS. So, it’s only fair that Apple TV gets some love too. Let’s take a look at what Cupertino has in store for Apple TVs today.

As of today, all Apple TVs are 4K HDR compatible, allowing for a much better visual experience on compatible devices. No 4K HDR experience is complete without the audio to go with it, which is why Apple TV 4K now supports Dolby Atmos. Of what use is an HDR-ready, Dolby Atmos TV if no content goes with it? Which is why you’ll get a load of HDR content on your Apple TV via partners such as Netflix and Amazon. Several existing titles will also receive an upgrade to 4K HDR and can be accessed for no extra price.