iPadOS 13.1 (build 17A5837a) is an official Apple over-the-air update for the iPad Pro 9.7-inch (Cellular), released on 2019-09-10T20:13:31Z. The update package is 171.1 MB. This is a delta (partial) update that requires 13.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bfeeeb30791f1ef569dbe3425e8ba2b3d8084640.zip.