iPadOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2017-10-23T17:04:10Z. The update package is 163.5 MB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 83c5fc3d66ba057e5f112aa6e96eefe86163f404.zip.