Apple has opened up the macOS Beta Program, which allows you to test pre-release or Beta versions of the Mac operating system. Until recently, you needed a $99 per year developer account to access beta versions of macOS. You can now do so for free. However, you'll still need to accept a NDA, so you should think twice before leaking any new features to the world. Our advice is that you should not run Beta software on Macs that are critical to your business. Beta software is guaranteed to have bugs - that's why they need testers - and it may break at any time. But you will also be one of the first to see new features coming from Apple.