iOS 9.3.4 (build 13G35) is an official Apple over-the-air update for the iPhone 4s, released on 2016-08-04T17:07:40Z. The update package is 932.53 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9b3471b986e5d7e562808906748eb4845a20635d.zip.