iPadOS 9.9.11.2.6 (build 15D100) is an official Apple over-the-air update for the iPad Pro 12.9-inch (Cellular), released on 2018-02-19T21:13:07Z. The update package is 1.28 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: 43df472faf1ebd520b0aeb8a289bf8f2aa962c27.zip.