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Apple has moved onto its third round of developer betas, with testers now able to try out fresh builds of iOS 13.4, iPadOS 13.4, tvOS 13.4, watchOS 6.2, and macOS 10.15.4 on their devices.
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.
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.
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.