iPadOS 9.9.16.4.1 (build 20E252) is an official Apple over-the-air update for the iPad Pro 12.9-inch (WiFi), released on 2023-04-07T17:13:05Z. The update package is 3.97 GB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7080e051a1d02075be4957532718fd92bb026aef.zip.