Apple today seeded the sixth developer beta of macOS Monterey, the newest version of the macOS operating system. The sixth beta comes three weeks after Apple released the fifth macOS Monterey beta.
Registered developers can download the beta through the Apple Developer Center and once the appropriate profile is installed, betas will be available through the Software Update mechanism in System Preferences.
As with all new betas, Apple recommends not installing the new macOS update on a primary machine because it is early release software and could have bugs.
Read more at MacRumors.com