iPadOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPad Air (Cellular), released on 2017-11-16T21:14:47Z. The update package is 1.05 GB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8433c59639176e1bea0490691247afa3e58e5871.zip.