iPadOS 13.3.1 (build 17D5026c) is an official Apple over-the-air update for the iPad 6 (Cellular), released on 2019-12-17T18:13:12Z. The update package is 226.24 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: e11eeec078705a98b9b739dbe718750cef386a30.zip.