iPadOS 11.4.1 (build 15G5072a) is an official Apple over-the-air update for the iPad mini 2 (China), released on 2018-06-18T17:05:24Z. The update package is 148.28 MB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5f5ae500813eb6fea6bff9e7eac0916b6867faf4.zip.