iPadOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2017-11-16T21:17:29Z. The update package is 164.3 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b235208363890fb9a0df9de7fa2fc5d840c74334.zip.