iOS 11.2.6 (build 15D100) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2018-02-19T21:13:29Z. The update package is 529.36 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: a4f1b12f0df65e73b7038e3074e4d0b918e978b9.zip.