iPadOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2017-11-09T18:06:38Z. The update package is 163.79 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: 8e39e1d08e884b34aec172d7dbb4b493269f6258.zip.