tvOS 13.4.5 (build 17L5560a) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2020-05-06T17:11:50Z. The update package is 141.96 MB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fde03578dc50d28699275d332f777bc4dc2193bf.zip.