iPadOS 13.5.5 (build 17G5035d) is an official Apple over-the-air update for the iPad Pro 3 (11-inch, Cellular), released on 2020-06-01T18:08:28Z. The update package is 194.23 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: 8e2fe5c92259b703168e2923214ae1fcfa7394d8.zip.