iPadOS 13.1 (build 17A5831c) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2019-09-04T17:05:36Z. The update package is 493.28 MB. This is a delta (partial) update that requires 13.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 69bdf9ff0d3220722e0e4ba85e1501e3b5e22e66.zip.