iOS 11.2.6 (build 15D100) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-02-19T21:14:58Z. The update package is 158.78 MB. This is a delta (partial) update that requires 11.2.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: df1462072ae4f3a189cc0b45f0d53e958c198984.zip.