iOS 9.9.11.0 (build 15A372) is an official Apple over-the-air update for the iPhone 6, released on 2017-09-12T19:10:10Z. The update package is 1.26 GB. This is a delta (partial) update that requires 9.3.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 467b68e23c6caf35a560acf5517a2a7c36935d79.zip.