https://wccftech.com/macos-catalina-10-15-3-beta-3-now-available-for-developers/ > Apple has released a new beta update for developers. You can now download macOS Catalina 10.15.3 beta 3. > Of all betas Apple releases, it’s fair to say that tvOS and macOS are always the boring ones. Don’t get me wrong here, they are important pieces of software on which million of people rely on. And if you happen to love testing out betas of tvOS or macOS, then you will be delighted to learn that you can now download macOS Catalina 10.15.3 beta 3 right away.