Seven days following the release of a seventh beta of macOS Sierra, Apple today seeded an eighth beta of the upcoming software to its registered developers and public beta testers. Both macOS Sierra beta 7 for members of the Apple Developer Program and macOS Sierra beta 7 for members of the Apple Beta Software Program are now available through the Mac App Store on computers with an appropriate configuration profile and as standalone downloads on Dev Center.
A new beta of macOS Sierra has been seeded to developers and public beta testers