iOS 12.4 (build 16G5038d) is an official Apple over-the-air update for the iPhone XS, released on 2019-05-28T17:07:40Z. The update package is 298.66 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 93a30c756463e0e8e166a0318fe97531e94e1970.zip.