iOS 9.9.13.4 (build 17E6255) is an official Apple over-the-air update for the iPhone 8 Plus (Global), released on 2020-03-18T17:21:51Z. 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: 80339e50f75c60b17c1e02a6a5d6045ab8009f70.zip.