tvOS 14.0 (build 18J386) is an official Apple over-the-air update for the Apple TV 4K, released on 2020-09-16T20:14:35Z. The update package is 1.33 GB. This is a delta (partial) update that requires 13.4.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 3b30f717c9a3da3c08feca8084ada66b312b7628.zip.