iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone X (Global), released on 2018-05-29T17:15:42Z. The update package is 292.32 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: ebe60a77059ca72fb7293aafaa82ab0fe528df80.zip.