iPadOS 13.3.1 (build 17D5026c) is an official Apple over-the-air update for the iPad Air 3 (Cellular), released on 2019-12-17T18:12:51Z. The update package is 210.97 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: a274ed5b2d7f71b5a4fd18a495f9c9b3a40c0b41.zip.