tvOS 8.4.1 (build 12H523) is an official Apple over-the-air update for the Apple TV 3, released on 2016-02-25T17:59:35Z. The update package is 234.49 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 03d296bddb68c30b28bd155154e2397ee8b85dbb.zip.