iPadOS 11.4 (build 15F5079a) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2018-05-17T17:01:56Z. The update package is 247.06 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: 09dce9c89f19ee718f1d76cb43ade1d37c44740a.zip.