Apple has released the fourth beta version of macOS Mojave 10.14.2 to Mac users enrolled in the Mojave beta testing program.
Both the developer and public beta version of macOS 10.14.2 are available to download now onto eligible machines.
Updating system software in macOS Mojave is done through the Software Update control panel within System Preferences.
No major new features are expected to arrive in macOS 10.14.2. It’s not entirely clear what macOS Mojave 10.14.2 is focusing on, but presumably the update will include bug fixes, security updates, and other enhancements to the Mojave operating system.
The most recent stable build of macOS Mojave is currently MacOS 10.14.1.
Separately, Apple also released an updated tvOS 12.1 beta 4 for Apple TV beta testers.
There are currently no updated beta versions of iOS 12.1.1 or watchOS 5.1.2, which both remain on beta 3 released several weeks ago. The most recent final build of iOS is currently iOS 12.1 for iPhone and iPad, and watchOS 5.1.1 for Apple Watch.