iOS 9.9.11.0 (build 15A372) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-09-12T19:10:33Z. The update package is 1.48 GB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1aeab68dccb899ec69d0d9b1edb69e7cc0e8e340.zip.