Apple's macOS Golden Gate has reached its sixth developer beta, which includes new dynamic wallpapers and updated traffic light window control icons.
On Monday, a week after the fifth developer beta arrived, Apple made macOS 27 beta 6 available for download. Though the update is a relatively light release, it delivers key visual enhancements.
With the latest developer beta, Apple added two dynamic wallpapers, both featuring the Golden Gate Bridge. They're effectively video files: one offering a daytime view of the bridge, and the other showing it in the evening.
High-resolution dynamic wallpapers were introduced with macOS Sonoma and have been available with every subsequent release of macOS. Unlike the abstract backgrounds that Apple debuts during WWDC, its dynamic wallpapers show off the real-world locations that a given macOS update was named after.
Though the new wallpapers are arguably the most significant change in macOS 27 beta 6, Apple has also tweaked the window control icons. The traffic light-style icons, which are used to resize, minimize, and maximize windows, have been given a Liquid Glass makeover.
The three iconic icons now have subtle shadows along the top and bottom, making them resemble three-dimensional, glass-like buttons rather than flat circles. It's not full-on skeuomorphism as we saw with Apple's Aqua aesthetic, but the change is noticeable nonetheless.
Overall, the sixth developer beta of macOS Golden Gate appears to be an update that mostly delivers under-the-hood enhancements, rather than new features for developers to test.
Apple's macOS Golden Gate is expected to receive its full public release in September 2026.
