tvOS 13.0 (build 17J5584a) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2019-09-18T17:07:41Z. The update package is 41.09 MB. This is a delta (partial) update that requires 13.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6f82341b073bd76acfdb066a2fb211cb5484c705.zip.