watchOS 6.0 (build 17R6575) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-09-11T18:36:56Z. The update package is 131.68 MB. This is a delta (partial) update that requires 6.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0fbf681a2a194a3656be44b80c5bb033454135a3.zip.