iPadOS 13.3.1 (build 17D5026c) is an official Apple over-the-air update for the iPad Pro 9.7-inch (WiFi), released on 2019-12-17T18:12:58Z. The update package is 190.45 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: bce210c3bab03e40e4821265fd947e492d2ca477.zip.