iOS 13.1 (build 17A5844a) is an official Apple over-the-air update for the iPhone XS, released on 2019-09-18T17:06:58Z. The update package is 125.66 MB. This is a delta (partial) update that requires 13.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8ab851752fa9921657a80c9d4fb4787f1e0010b6.zip.