iPadOS 9.9.11.2.6 (build 15D100) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2018-02-19T21:09:27Z. The update package is 1.31 GB. This is a delta (partial) update that requires 9.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a3472a8c189a3b6e4f4a09b3fcd69c9573343ae8.zip.