iPadOS 9.9.11.2.6 (build 15D100) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-02-19T21:09:26Z. The update package is 1.5 GB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c918f109f35831af05b8d7e04c415c76dfb618f9.zip.