iPadOS 9.9.13.4 (build 17E255) is an official Apple over-the-air update for the iPad Pro 3 (11-inch, Cellular, 1TB Model), released on 2020-03-18T17:21:59Z. 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: 41d18243b30dcbe3da2a104f26551a4e7f1cd930.zip.