During the opening keynote of WWDC19, Apple had promised to release the first public beta versions of its operating systems in July, so that anyone, whether a developer or not, can test future versions of the release. iOS 13, of iPadOS 13, of macOS Catalina 10.15 It's from tvOS 13 (O watchOS 6remember, the only system that is not part of the Apple Beta Software Program).
Today, unexpectedly after all, it is still June, Apple has already released the first public beta of them all! Apparently, they correspond to the second beta releases recently released to developers.
To test systems, I need to sign up for the Apple Beta Software Program; After that, you will be able to download the appropriate certificates and install them on your devices in order to be able to test everything as usual, it is good to backup everything before you even think about installing any of these new systems.
All instructions and step-by-step instructions for downloading and installing iOS 13, iPadOS 13, and macOS Catalina 10.15 are available from the Apple Beta Software Program; In the program, there is also a question and answer area (FAQ) for you to answer your questions before proceeding with the installation (s).
Problems encountered in public beta releases should be reported to Apple through the Feedback Assistant app, which automatically installed on the device the idea, after all, to help the company fix all issues of the new systems before their final release, which should happen in September October.