Where can I get macOS Catalina Beta version?

Solution 1:

Public beta for macOS Catalina is now released by Apple. The same is available to download from Apple Beta Software Program website.

You can find handy guides for installing public betas here:

• Guide for Public Betas

To download the macOS Catalina installer, select macOS tab on top of the page and under Get Started section click on enroll your Mac link.

Solution 2:

If you're not on the Apple Developer Program and you want to test the beta OS, you'll have to wait until the public beta is available.

For macOS and iOS beta versions, the public beta dates have not been announced yet. You can go to the Apple Beta Signup. The production release date of Catalina hasn't been announced.