tvOS 9.0 (build 13T5379f) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2015-10-06T17:54:08Z. The update package is 665.09 MB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bfcd78eca6fb19637ea16ad246af507ec4239ae4.zip.