iPadOS 13.3.1 (build 17D5050a) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, WiFi), released on 2020-01-22T18:07:14Z. The update package is 208.83 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: 7086c8cdcf565717efb352bad1fd9afff5a1f651.zip.