iOS 9.9.13.0 (build 17A5556d) is an official Apple over-the-air update for the iPhone XS, released on 2019-08-07T17:04:51Z. The update package is 3.4 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: 9af65c5c2823a2f21d51c94291ff90bec4904ba1.zip.