Following the release of iOS 11.2 last week, which was made available on Saturday morning, today Apple has now released watchOS 4.2.
With the iOS 11.2 update, it brought the addition of Apple Pay Cash for US users only as well as some small bug fixes and enhancements to the interface.
The update for Apple Watch also adds support for Apple Pay Cash, which at the time of writing is still only available in the US. As well as a fix for a bug with Siri, which could make the Apple Watch crash and restart if it was asked about the weather.
Also a bug has been fixed which could have caused scrolling to be an issue within the Heart Rate app.
Updating Apple Watch involves keeping it within range of your iPhone and miking sure it is on its charger and has at least 50% of battery.