iOS 13.0 (build 17A5522f) is an official Apple over-the-air update for the iPhone 6s, released on 2019-07-02T17:58:53Z. The update package is 916.03 MB. This is a delta (partial) update that requires 13.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a83a605e869e9482a00e9f867003de30d3ff370d.zip.