iPadOS 9.9.11.3.1 (build 15E6302) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2018-04-24T17:04:14Z. The update package is 1.91 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: 05bbf86249a1b15674326ea8b21cc18de85e4fa5.zip.