Beta 4 of iOS 13.4, iPadOS 13.4, MacOS 10.15.4 Available for Testing
The fourth beta versions of iOS 13.4, iPadOS 13.4, macOS Catalina 10.15.4, watchOS 6.2, and tvOS 13.4 are available for testing to those users who are enrolled in the Apple OS beta testing programs.
The focus of iOS 13.4 beta 4 and iPadOS 13.4 beta 4 is likely bug fixes and security enhancements, though there are some minor changes and new features available as well, including a redesigned Mail toolbar that may help prevent accidentally deleting emails, support for iCloud folder sharing, and some new Memoji features. The newest iOS 13 beta arrives as build 17E5249a.
MacOS Catalina 10.15.3 beta 4 also appears to be primarily focused on bug fixes and security enhancements.
Anyone who is actively enrolled in the beta testing programs for Apple system software can find the latest beta builds available as developer and public beta releases.
For iOS 13.4 beta 4 and iPadOS 13.4 beta 4, eligible users can find the most recent beta version available through Settings app > Software Update.
For macOS Catalina 10.15.4 beta 4, eligible beta testers can get the latest beta build from System Preferences > Software Update.
WatchOS 6.2 beta 4 and tvOS 13.4 beta 4 are available to download through their respective settings apps as well.
Based on prior release cycles, it’s a fair guess that the final versions of iOS 13.4, ipadOS 13.4, macOS Catalina 10.15.4, watchOS 6.2, and tvOS 13.4 will be available sometime later in the month.
The most recent stable final versions of system software available are currently iOS 13.3.1 and iPadOS 13.3.1 for newer iPhone and iPad models, iOS 12.4.5 for older iPhone and iPad models, macOS 10.15.3 Catalina for Mac, Security updates for MacOS Mojave and MacOS High Sierra for Mac, watchOS 6.1.2 for Apple Watch, and tvOS 13.3 for Apple TV.