Apple today seeded the fourth beta of an upcoming macOS Monterey 12.1 update to developers for testing purposes, with the new software coming two weeks after the third beta and a month after the official release of macOS Monterey.
Registered developers can download macOS Monterey 12.1 beta profile through the Apple Developer Center and after the appropriate profile is installed, the beta will be available through the Software Update mechanism in System Preferences.
macOS Monterey 12.1 brings SharePlay to Macs for the first time. SharePlay is a new feature that’s designed to let you watch TV, listen to music, and play games with friends and family members over FaceTime.
Read more at MacRumors.com