iPadOS 9.9.11.1 (build 15B93) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2017-10-23T17:04:30Z. The update package is 1.5 GB. This is a delta (partial) update that requires 8.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 40c9073dddaa1866bf0a56a744d5a6716b71a72a.zip.