iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad mini 4 (Cellular), released on 2018-05-29T17:14:15Z. The update package is 738.53 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: 694228808b8437fd0e2b3b543834b39beab2337f.zip.