tvOS 8.4.3 (build 12H876) is an official Apple over-the-air update for the Apple TV 3 (2013), released on 2019-09-24T17:10:55Z. The update package is 16.57 MB. This is a delta (partial) update that requires 8.4.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d9a9050a07ec68351f43e85d1cce1dcdaffefdae.zip.