iPadOS 13.5 (build 17F5065a) is an official Apple over-the-air update for the iPad Pro 4 (12.9-inch, Cellular), released on 2020-05-06T17:08:37Z. The update package is 156.06 MB. This is a delta (partial) update that requires 13.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 93b1d263c14660e9f9a809d8f453f868c595530d.zip.