iPadOS 13.6 (build 17G5045c) is an official Apple over-the-air update for the iPad Pro 3 (11-inch, Cellular, 1TB Model), released on 2020-06-09T17:28:08Z. The update package is 325.85 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: f1aa663b9d491dffad76bc4fd90cc6993f4d25c7.zip.