iOS 9.9.13.6 (build 17G5059c) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2020-06-30T17:22:58Z. The update package is 2.92 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: afcbc4349d4cf07fa5be4dbff580157a90391790.zip.