iOS 11.2.6 (build 15D100) is an official Apple over-the-air update for the iPhone 6s+, released on 2018-02-19T21:14:37Z. The update package is 451.98 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: c010df5e4425299f6a4e6da5dcaba31f37db180a.zip.