iOS 9.9.11.2 (build 15C5110b) is an official Apple over-the-air update for the iPhone 6s, released on 2017-11-17T18:13:35Z. The update package is 1.76 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a3673b17b877b150a2e2bb81b8733a424248d406.zip.