watchOS 6.0 (build 17R5546f) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-07-30T17:10:18Z. The update package is 686.82 MB. This is a delta (partial) update that requires 5.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 35b63e821905f6d22219e30384aa2c1ff3ef2a73.zip.