tvOS 14.0 (build 18J386) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2020-09-16T20:14:31Z. The update package is 1.08 GB. This is a delta (partial) update that requires 13.4.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8e2f84b498e1934142f24454e10653f834f62188.zip.