iOS 9.9.13.4.5 (build 17F5044d) is an official Apple over-the-air update for the iPhone XS, released on 2020-04-15T17:15:42Z. The update package is 3.83 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: 72ec9d428e04dd6ac69d45d5823197a15dcb5d90.zip.