iOS 13.4 (build 17E5249a) is an official Apple over-the-air update for the iPhone XS Max, released on 2020-03-03T18:20:12Z. The update package is 143.45 MB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 616d16d67970f81ab228ce6e68b11e3622c8237c.zip.