iPadOS 9.9.16.3.1 (build 20D67) is an official Apple over-the-air update for the iPad Pro 4 (12.9-inch, Cellular), released on 2023-02-13T18:24:34Z. The update package is 4.57 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8dbd0635226d705897bad6059e20bfa27c38d859.zip.