iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad Air 2 (Cellular), released on 2017-10-23T17:04:45Z. The update package is 163.48 MB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9844f94185ce9ce9b5337b0f688a93047359c704.zip.