iPadOS 11.4 (build 15F5077a) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2018-05-14T17:16:45Z. The update package is 222.81 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: 1c7ba47c5c827eea7368a4c44c96843247ed398f.zip.