iPadOS 9.9.17.1.1 (build 21B91) is an official Apple over-the-air update for the iPad Pro (12.9-inch, Cellular) (5th generation), released on 2023-11-07T21:28:24Z. The update package is 5.62 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: 0c400f255d056c809f1e8ff148e1ac6ba357c85f.zip.