iPadOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPad Air (WiFi), released on 2017-11-16T21:14:29Z. The update package is 159.1 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: cd4b4731be94fed5cceeb5e322e6a825790987d7.zip.