iOS 11.0 (build 15A5368a) is an official Apple over-the-air update for the iPhone 6s, released on 2017-08-28T17:18:16Z. The update package is 52.83 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 47c5ced8ee6b186fcdd6dc8b9a04eea6b048857e.zip.