iPadOS 9.9.13.4 (build 17E255) is an official Apple over-the-air update for the iPad Pro 3 (12.9-inch, Cellular), released on 2020-03-18T17:22:00Z. The update package is 3.23 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: 87123aa14bae960bd31204f82cb16808aae9f7c9.zip.