iPadOS 13.3.1 (build 17D5050a) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2020-01-22T18:06:56Z. The update package is 180.64 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: d407c5163c5a516a7974ebe7a94f67f49ac4a14f.zip.