iOS 13.3 (build 17C5053a) is an official Apple over-the-air update for the iPhone XS, released on 2019-12-05T21:11:29Z. The update package is 856.82 MB. This is a delta (partial) update that requires 13.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 823c0540af3d3dd120d63591543aa3c88c5cef5c.zip.