iPadOS 13.1 (build 17A5837a) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2019-09-10T20:12:32Z. The update package is 339.45 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: 25076a1c2a2a5aa365e584a36d87d67b35a98bf6.zip.