iPadOS 9.9.13.3 (build 17C54) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2019-12-10T18:13:22Z. The update package is 2.77 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: ea515414a3736d652f34673e9e3b6eb25003893b.zip.