iPadOS 13.3.1 (build 17D5044a) is an official Apple over-the-air update for the iPad 5 (Cellular), released on 2020-01-14T18:20:38Z. The update package is 172.34 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: 531220dbc73822b15b7587a09eea06d0e2f5e552.zip.