https://wccftech.com/apple-seeds-macos-catalina-beta-10-to-developers/

Apple has seen fit to release beta 10 of macOS Catalina to developers. The new beta arrives a week after the company seeded the ninth developer beta. It has been a month since Apple officially unveiled macOS Catalina at the WWDC event. If you’re a registered developer, you can download and install the latest beta 10 of macOS Catalina on your supported Mac devices right now. Let’s dive in to see some more details on the matter.

The latest macOS Catalina beta 10 can be downloaded on your Mac using the Software Update mechanism in System Preferences. Do take note that a proper configuration profile is required which can be installed from the Apple Developer Center.