iPadOS 13.3.1 (build 17D5050a) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2020-01-22T18:06:57Z. The update package is 74.44 MB. This is a delta (partial) update that requires 13.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a7ed9e5c45d7535c54825b5befeaedcb0aa0ca4a.zip.