iOS 11.2.6 (build 15D100) is an official Apple over-the-air update for the iPhone 6, released on 2018-02-19T21:14:18Z. The update package is 155.56 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: b8264bc88caa46ccf301c520718800a857ec2b96.zip.