Apple is distributing a second round of developer betas for its current-generation software updates, including macOS 26.6. Multiple outlets report that the new builds are available to enrolled developers and arrive after an earlier wave of first developer betas released the previous week (reported as May 26). The rollout covers several platforms tied to version 26.6, including iOS 26.6, iPadOS 26.6, watchOS 26.6, tvOS 26.6, visionOS 26.6, and macOS 26.6. The updates are part of Apple’s ongoing beta testing cycle following announcements made during Apple’s WWDC keynote. The reports also note that Apple is managing two different beta tracks at the same time: betas for the newer “27-generation” operating systems introduced at WWDC, alongside these second developer betas for the existing “26-generation” lineup. While the outlets focus on availability and version scope rather than specific feature changes, they agree this second developer build set is now rolling out across the listed Apple operating systems.