iPadOS 9.9.16.6.1 (build 20G81) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2023-09-07T18:00:00Z. The update package is 3.99 GB. This is a delta (partial) update that requires 10.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f42ddefd61c4ab0685f81d577916feb7ebadb713.zip.