Apple has released a second beta of watchOS 4.3.2 to registered developers.
Featuring a build number of 15U5062a, the latest beta follows release of new iOS 11.4.1 and tvOS 11.4.1 betas earlier this week and contains similarly empty release notes, suggesting that the newest beta includes on extremely minor fixes.
With watchOS 5 already in the early beta stages, it seems likely that this may be the last watchOS 4 release.