iOS 9.3.2 (build 13F69) is an official Apple over-the-air update for the iPhone 6s, released on 2016-05-16T16:49:27Z. The update package is 312.57 MB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a8d3c704607e32d9f7967d3227abd12ea26caa74.zip.