Apple releases third betas for macOS 10.15.4, iOS 13.4, iPadOS 13.4, tvOS 13.4, watchOS 6.2

The latest builds can be downloaded by developers in the beta-testing scheme via the Apple Developer Center, or as an over-the-air update for hardware already using earlier beta builds. A public beta version of the releases is expected to start arriving soon, and will be available through the Apple Beta Software Program website.

This is the third set of developer betas for this generation. The second round took place on February 19, while the first appeared on February 5.

In previous rounds, the iOS and iPadOS 13.4 betas offered additions such as the return of iCloud folder sharing, developers gaining the ability to sell macOS and iOS apps as a single purchase, new Memoji stickers, a rearranged Mail toolbar, Photos keyboard shortcuts, TV app tweaks for Family Sharing, new CarPlay controls, and an update to the location access authorization prompt.

Buried in the iOS beta was also a new CarKey API, which suggests an iPhone or Apple Watch may be able to unlock, lock, and start a car equipped with NFC.

In tvOS 13.4, references to new Apple TV 4K hardware were made, including a new model number.

For the second beta of macOS 10.15.4, Apple added time-synchronized lyrics to Apple Music, bringing the popular feature from the iOS app to Mac for the first time.

Both AppleInsider and Apple itself strongly recommend users don't install the betas on to "mission-critical" or primary devices, as there is the remote possibility of data loss or other issues. Instead, testers should install betas onto secondary or non-essential devices, and to make sure there are sufficient backups of important data before updating.

Find any changes in the new betas? Reach out to us on Twitter at @AppleInsider or @Andrew_OSU, or send Andrew an email at andrew@AppleInsider.com.