iPadOS 11.4.1 (build 15G77) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2018-07-09T17:07:41Z. The update package is 613.33 MB. This is a delta (partial) update that requires 11.2.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 204da7c20bda97cba6827b5457eb6ab9a90b5593.zip.