The latest stable version of macOS is Big Sur is 11.5.1. However, the latest beta which gives out a whole handful of features is named macOS Monterney beta 3. Here's how to switch to it:
We don't recommend switching to the beta for your daily work machine. Beta's can be fun with checking out the latest features but can have serious issues with app compatibility. If our still reading this then it means your buckled up and ready for the ride.
Warning: We recommend you do make a backup in case something goes wrong.
When the installer is done, System Preferences will automatically open and bring up the software update section. If it doesn't, manually head there yourself. Then select Update to download and install the software. Once it has been installed, your Mac will automatically restart.
Now we have to install the beta. Here's how to do it.
When the reboot is done, your Mac will be running the latest beta.