iPadOS 13.1 (build 17A5844a) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2019-09-18T17:06:39Z. The update package is 96 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: 336bed8c81e09ee7413392a9c60b269b2daa5a24.zip.