You Can Install MacOS Sonoma Beta Right Now, But Don’t
MacOS Sonoma beta is available to download and install by any Mac user for free, thanks to a recent change in the Apple Developer program. However, it’s important to remember this is an early developer beta of MacOS 14 that is buggy and less stable, so most Mac users should not install it at this point in time.
Apple quietly changed the Apple Developer program to allow anyone enrolled to be a developer to have access to download and install betas of all Apple system software, including MacOS Sonoma beta, iOS 17 beta, iPadOS 17 beta, watchOS 10 beta, and tvOS 17 beta, and without having to pay for the annual membership fee. Basically this means that anyone can use the developer beta system software right now, without having to wait for the public beta.