iPadOS 9.9.11.0.2 (build 15A421) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2017-10-03T16:59:52Z. The update package is 1.42 GB. This is a delta (partial) update that requires 8.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 05697a520b31cc05fa0ec396935556ba7d65347c.zip.