iPadOS 13.1 (build 17A5821e) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular, 1TB Model), released on 2019-08-27T17:29:01Z. The update package is 422.23 MB. This is a delta (partial) update that requires 13.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fb7c52d62cef329bf9feb39899f6b9c4f53781c1.zip.