tvOS 14.0.1 (build 18J400) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2020-09-24T17:11:44Z. The update package is 1.08 GB. This is a delta (partial) update that requires 13.4.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 13521cd086c2fe11c2ccc3f643e2cac81e0eb622.zip.