iPadOS 9.9.11.1 (build 15B93) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2017-10-23T17:04:12Z. The update package is 1.5 GB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: afd01847e9e0a81f818ffb9f61ce5fd1e1217eb6.zip.