As expected, Apple has released the first beta versions of iOS 13, iPadOS 13, watchOS 6, macOS 10.15 Catalina and tvOS 13.
The updates are available via the developer portal for members of the Apple Developer Program. The new operating systems were presented this evening at WWDC 2019. You can read about the new features in each operating system here:
iOS 13
iPadOS 13
watchOS 6
macOS 10.15 Catalina
tvOS 13
As usual, a beta should not be installed on a device that is actively in use, as the first beta versions of major updates are usually quite unstable - we recommend a second device for this. We also advise against searching for beta profiles on the Internet as an unregistered developer - corresponding public beta versions will follow in July. You can find out how you can take part in such a beta test here. (Image: Apple)
The build numbers are:
macOS Catalina 10.15 beta (19A471t)
iOS 13 beta (17A5492t)
watchOS 6 beta (17R5491t)
tvOS 13 beta (17J5485s)