iOS 11.4 (build 15F79) is an official Apple over-the-air update for the iPhone SE, released on 2018-05-29T17:16:55Z. The update package is 241.49 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: 3474e6f4a29522fe017a364ce87632a4ee86b5b0.zip.