iPadOS 13.1 (build 17A5831c) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2019-09-04T17:05:51Z. The update package is 304.5 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: 386d403dfaf9c6c25fb1e1e17c7544495ff13c23.zip.