macOS 10.15.2 Update
Today Apple released macOS 10.15.2 Update, a major software update to macOS Catalina. Update any supported system using the built-in Software Update functionality through the System Preferences pane or by using the standalone installer available from Apple.com.
The macOS 10.15 Catalina Public Beta is now available. Apple wants as many users as possible to test macOS Catalina to provide constructive feedback before the official release later this fall. To participate in the free Public Beta, you must enroll in the Apple Beta Software Program using your Apple ID.