iOS 9.9.11.4 (build 15F79) is an official Apple over-the-air update for the iPhone 5s (Global), released on 2018-05-29T17:16:02Z. The update package is 1.42 GB. This is a delta (partial) update that requires 9.3.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c88d32768e28afbfb881a94f5b4ce2a96cfb9e1f.zip.