iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2017-11-09T18:07:38Z. The update package is 163.59 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: cde0d114e632cc6a671a4fa86e22657c6ce9b08d.zip.