iPadOS 11.4.1 (build 15G5054c) is an official Apple over-the-air update for the iPad mini 4 (WiFi), released on 2018-05-30T17:04:47Z. The update package is 211.7 MB. This is a delta (partial) update that requires 11.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8a04e86d19fa38007f4937d50af6f3ed434e952d.zip.