iOS 9.9.11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 6, released on 2017-11-09T18:10:29Z. The update package is 1.42 GB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d8de4ba61c27994b8b96d4fb4ee4dc723eb628c1.zip.