iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad mini 2 (Cellular), released on 2018-05-29T17:13:30Z. The update package is 1.21 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ebf4626924e0088a5d36ef7bb2b4c8e6bbfc7c19.zip.