A fourth beta of watchOS 3.2.3 for Apple Watch is now rolling out to Apple’s registered developers and members of the Apple Developer Program. Available as an over-the-air update via the Software Update mechanism in the companion Watch app on a paired iPhone, watchOS 3.2.3 beta 4 (build number 14V5751a) includes bug fixes and performance optimizations.

You Apple Watch must be in range of its paired iPhone, have 50 percent battery and be placed on its charger in order for the update to download and install. watchOS 4 betas are not available through the Apple Beta Software Program.

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The new watchOS 3.2.3 beta follows iOS 10.3.3 beta 4 and tvOS 10.2.2 beta 4 which got seeded to developers on June 22. The prior watchOS 3.2.2 bug-fix software update released for public consumption more than a month ago.

watchOS 3.2.3, iOS 10.3.3 and tvOS 10.2.2 could be the last point updates before iOS 11, watchOS 4 and tvOS 11 arrive this fall. If you spot any noteworthy changes in watchOS 3.2.3 beta 4, leave a comment below and we’ll update the article with new information.