The first pre-release versions of updates for all Apple computers include significant new features. iCloud folder sharing makes its delayed debut. And the ability to buy the iOS, iPadOS, macOS, and tvOS versions of third-party software as a single purchase is coming too.
These features appear in the initial developer betas of iOS 13.4, macOS 10.15.4, iPadOS 13.4, tvOS 13.4 and watchOS 6.2.