tvOS 8.1 (build 12B407) is an official Apple over-the-air update for the Apple TV 3 (2013), released on 2014-10-07T18:06:03Z. The update package is 17.97 MB. This is a delta (partial) update that requires 8.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 60c79b8736fb310b54264e63f2c1ff4cd5fb7549.zip.