Apple seeded a new beta build to developers today with the release of macOS 10.13.3 beta 5.
The new beta comes a week after Apple dropped the fourth beta build on developers, bringing with it a host of new bug fixes and performance improvements.
Registered developers can download macOS 10.13.3 beta 5 directly from the Apple Developer Center online. It can also be installed through the Mac App Store updates menu.
Release notes for macOS 10.13.3 beta 5 don’t mention any major changes so it’s hard to what kind of new stuff is waiting for developers. It most likely just contains under-the-hood changes as Apple readies it for a public launch.
macOS 10.13.3 has been in development since the end of 2017. It also contains some additional fixes for the Spectre chip flaw.