iPadOS 13.3.1 (build 17D5050a) is an official Apple over-the-air update for the iPad Air 3 (WiFi), released on 2020-01-22T18:06:53Z. The update package is 205.86 MB. This is a delta (partial) update that requires 13.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0f14d9075485dad9539e844dbe7093e014865453.zip.