iPadOS 13.1 (build 17A5831c) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular, 1TB Model), released on 2019-09-04T17:06:07Z. The update package is 335.3 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: d6f2c9b5ae073f81c6d42b7df45c8fa9112831e2.zip.