iPadOS 13.3.1 (build 17D5050a) is an official Apple over-the-air update for the iPad Pro (10.5-inch, WiFi), released on 2020-01-22T18:07:08Z. The update package is 159.75 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: e0bb5622527e26ab523d98c3e4860b0db372d529.zip.