iPadOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPad Air 2 (WiFi), released on 2017-11-16T21:18:04Z. The update package is 163.77 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 286093d54563d9755f9c68180d32e396bd109970.zip.