iOS 9.9.12.5.8 (build 16H6088) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2026-01-26T18:15:32Z. The update package is 2.11 GB. This is a full OTA update that can be applied from any compatible base version. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: ea4b17b4dcce3b575a5fe732192256cf9adb81eb.zip.