The new beta version of macOS Mojave 10.14 is already available for developers. MacOS Mojave beta 5 can be downloaded from the Updates tab in Mac App Store. The build number of the new version is 18A347e.
First unveiled in June this year, macOS Mojave brings a host of new features, including a new way to sort files on the desktop, a new gallery view, apps from iOS, a redesigned Mac App Store etc.
The final version of macOS Mojave is due out this fall, along with updates iOS, tvOS and watchOS.
The new beta of macOS Mojave contains a large number of new wallpapers:
