iOS 9.9.13.4 (build 17E255) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2020-03-18T17:22:00Z. The update package is 3.07 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: 954d6f7f8a53ba673d409d8cfa94247fcb7a9bf3.zip.