iOS 11.0 (build 15A5304i) is an official Apple over-the-air update for the iPhone 6s, released on 2017-06-21T20:09:56Z. The update package is 381.14 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: 672e3fccc667685132c134b6df55daeb520dbcb1.zip.