iOS 11.2.6 (build 15D100) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2018-02-19T21:13:58Z. The update package is 27.85 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c1207837d96004b3ce8057136af50b02b702e4ec.zip.