tvOS 13.4 (build 17L5235e) is an official Apple over-the-air update for the Apple TV 4 (2015), released on 2020-02-19T18:23:27Z. The update package is 409.98 MB. This is a delta (partial) update that requires 13.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 77552a99edf6bf7d888f78ddcc6568c53e0f2030.zip.