iPadOS 9.9.11.0 (build 15A372) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2017-09-12T19:09:13Z. The update package is 1.25 GB. This is a delta (partial) update that requires 9.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8619b2c2faabdc7601fdc3a8fb0d333bf287d2f9.zip.