iPadOS 9.9.16.5 (build 20F66) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2023-05-18T17:13:16Z. The update package is 3.98 GB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 27258dcaad302634b22eb09dd9904da44b12df11.zip.