iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2017-10-23T17:04:18Z. The update package is 1.08 GB. This is a delta (partial) update that requires 10.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d8b9cfe5f3992aad400261db9c7ef0bd587903c8.zip.