Apple today seeded the release candidate version of macOS Ventura 13.5 to developers for testing purposes, with the beta introduced a week after the release of the fifth beta.
Registered developers can download the beta through the Apple Developer Center and after the appropriate profile is installed, with the betas available through the Software Update mechanism in System Settings.
No notable features have been found in macOS 13.5, so it’s not yet clear what’s included in the update.
Read more at MacRumors.com