iOS 9.9.11.0 (build 15A6372) is an official Apple over-the-air update for the iPhone 6s, released on 2017-09-12T19:11:13Z. The update package is 1.77 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: ef9ee5e610245c79c5cdbdc8f33311d405aaccd0.zip.