iPadOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2017-11-16T21:17:33Z. The update package is 40.21 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e94a48bce3e1ec4bfa047efa8472d72497607730.zip.