The beta 2 update was just released to developers yesterday.
So far, no major new features have been discovered but you can try out the betas by signing up for the Apple Beta Software Program.
Help make the next releases of iOS, iPadOS, macOS, tvOS and watchOS our best yet. As a member of the Apple Beta Software Program, you can take part in shaping Apple software by test-driving pre-release versions and letting us know what you think.
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