iPadOS 13.1 (build 17A5837a) is an official Apple over-the-air update for the iPad Air 3 (Cellular), released on 2019-09-10T20:11:55Z. The update package is 394.37 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: a1f0d498c735e35112a5c688e41d764715df4472.zip.