iPadOS 9.9.13.1 (build 17A5844a) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2019-09-18T17:06:35Z. The update package is 2.72 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: df6b37509277d5e6de88cd880892687803ba1bf3.zip.