Apple has seeded the first developer betas of watchOS 26.6, tvOS 26.6, visionOS 26.6, and HomePod Software 26.6 for testing.
The build numbers for today's releases are 23U5025e for watchOS, 23L5729e for tvOS and HomePod, and 23O5728e for visionOS. They arrive alongside the corresponding first beta for iOS and iPadOS.
This testing cycle follows the recent public rollout of version 26.5, which brought a new Pride Luminance watch face to the Apple Watch and delivered general stability improvements to Apple TV and Vision Pro.
Apple has not published detailed release notes outlining specific changes for these new builds. Because the company is preparing to preview its next-generation operating systems at WWDC26 next month, active feature development on the current software branch is likely wrapping up. These late-stage updates are expected to focus heavily on under-the-hood performance patches and bug fixes.
Registered developers can download the software through the Software Update menu in Settings on their respective devices. The watchOS update must be initiated through the Watch app on a paired iPhone.