Apple has released the fourth watchOS 6.2 4 for Apple Watch for developers only. This version comes the day after bta 4 diOS 13.4 (iPadOS), tvOS 13.4 and macOS 10.15.4.
To take advantage of these updates, you must subscribe to a developer account (99 / year) or as a beta-tester (free) at the following address: beta.apple.com.
This fourth beta version of watchOS 6.2 seems to introduce only bug fixes and performance improvements. However, it is possible that Apple has also introduced some small novelties but nothing specific has yet been discovered.
If you spot something notable, don't hesitate to let us know in the comments.