iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad mini 2 (WiFi), released on 2018-05-29T17:13:25Z. The update package is 678.1 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 081eced38244ffd6e4f873cff7299e5430e42dc0.zip.