tvOS 13.4.5 (build 17L562) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2020-05-20T17:07:43Z. The update package is 970.47 MB. This is a delta (partial) update that requires 12.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 688578828abfaf0dd900f6ed71c569e0491b57c0.zip.