iOS 11.2.6 (build 15D100) is an official Apple over-the-air update for the iPhone 6+, released on 2018-02-19T21:14:04Z. The update package is 516.26 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 30d9275be3f031e661b54dcac2d2f200ae01a1ed.zip.