Alongside the release of iOS 13.4 Beta 2 and iPadOS 13.4 Beta 2, Apple has also released the second developer beta builds of macOS 10.15.4, tvOS 13.4, and watchOS 6.2.
Two weeks after releasing the developer beta builds of tvOS 13.4 and watchOS 6.2 for the first time, Apple has released the second beta builds of macOS 10.15.4, tvOS 13.4, and watchOS 6.2 operating systems to registered developers.
The macOS 10.15.4 update brings timed lyrics to the Music app for the first time. This feature was released last year with the iTunes app for macOS, but it was removed when the iTunes app was replaced with the Music app. The timed lyrics feature is present in iOS and iPadOS as well.
— Filipe Espósito (@filipeesposito) February 20, 2020
The tvOS 13.4 Beta 2 update is compatible with the Apple TV HD and the Apple TV 4K. We still don’t know what’s new with the latest version of the smart TV operating system from Apple, but bug fixes, performance improvements, and stability improvements are to be expected as usual.
The first beta update of watchOS 6.2 brought support for in-app purchases and universal apps. Universal apps let users download a single universal version of the app that runs on all Apple platforms, including iOS, iPadOS, macOS, tvOS, and watchOS.
We will update the changes with the latest releases of macOS 10.15.4, tvOS 13.4, and watchOS 6.2 as soon as we start getting the information.