tvOS 13.3

tvOS 13.3 (build 17K449) is an official Apple over-the-air update for the Apple TV 4K, released on 2019-12-10T18:33:12Z. The update package is 918.99 MB. This is a delta (partial) update that requires 12.4 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 94cd224c7afdb43165cce33378e350bc158354a0.zip.