iOS 11.0 (build 15A5372a) is an official Apple over-the-air update for the iPhone 6s, released on 2017-09-06T16:51:07Z. The update package is 36.92 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: 5860f76e98e9010f28c7ec4c2b0aa39deed50218.zip.