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 1.46 GB. This is a delta (partial) update that requires 8.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0584779fa9b32c38c9b35f72d2605b9e37f4b58a.zip.