iPadOS 13.1 (build 17A5837a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2019-09-10T20:13:53Z. The update package is 340.5 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: 7eb87b275d5b73404365a09a6d97929fb7e21012.zip.