iPadOS 13.1 (build 17A5831c) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2019-09-04T17:05:45Z. The update package is 295.67 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: 87c0a91af891486cbf3063ec5e0f0ada236d2c4c.zip.