iPadOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2018-05-29T17:13:46Z. The update package is 616.14 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d1e79ee60f98f29633827078f8944032f0b3d715.zip.