Apple Releases First watchOS 26.6, tvOS 26.6 and visionOS 26.6 Betas
Source: MacRumors
Apple today provided developers with the first betas of the upcoming watchOS 26.6, tvOS 26.6, and visionOS 26.6 for testing purposes. The updates arrive two weeks after Apple launched the 26.5 versions of each platform.

The software updates are available through the Settings app on each device, and because these are developer betas, a free developer account is required.
There’s no word yet on what’s new in the software. watchOS, tvOS, and visionOS typically introduce only a few features in each new beta, with most changes focused on bug fixes and performance improvements.
Apple will likely make the tvOS 26.6 and watchOS 26.6 betas available to public beta testers within a week or two, while visionOS 26.6 will remain limited to developers.