iPadOS 9.9.17.1.1 (build 21B91) is an official Apple over-the-air update for the iPad Pro (10.5-inch, Cellular), released on 2023-11-07T21:29:22Z. The update package is 4.85 GB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a1e984171be1276540abade26fae5151bed16fc4.zip.