macOS 11.5.2 Update
Today Apple released macOS 11.5.2 Update, a major software update to macOS Big Sur. Update any supported system using the built-in Software Update functionality through the macOS System Preferences pane.
Here's a quick guide to create a macOS 12 Monterey Public Beta Installation USB. Please note, this guide is not universal, and may not work for all systems.
The macOS 12 Monterey Public Beta is now available. Apple wants as many users as possible to test macOS Monterey 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.