iPadOS 11.4 (build 15F5079a) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2018-05-17T17:02:00Z. The update package is 247.36 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 17d5eae9cbc456bcade6787858247dd48b7dd56f.zip.