iPadOS 11.4 (build 15F5071a) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2018-05-07T17:10:56Z. The update package is 173.32 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: 3d030fea3241f43ad8a6cc909ddffecc60a3da14.zip.