iPadOS 9.9.13.5 (build 17F5054h) is an official Apple over-the-air update for the iPad Pro 4 (11-inch, Cellular), released on 2020-04-29T17:07:00Z. The update package is 3.12 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: b9cdc895ea2982995fac8e0bbed6dd3ead3ea0b3.zip.