After iOS 11 beta 2 Update 1 and tvOS 11 beta 2, Apple has issued a supplemental update for macOS High Sierra beta 2. The update can be downloaded from the developers site Apple, as well as on Mac computers with installed test version of the operating system.
macOS High Sierra is the new edition of the desktop platform Apple, designed to provide owners of Mac new technologies, features and enhancements. The OS supports the advanced technology of Metal, creating VR content, a new file storage system.
It improved many programs that computer users work with every day. In particular, Safari will be the fastest browser, and can handle Javascript up to 80% faster than Chrome.
Also improved Mail app. Optimized design allows you to place important messages at the top of the screen and is more convenient to work with messages. At the same time, improved content storage mechanism, thanks to which they will require 35% less space. In addition, the new OS Apple has introduced hardware support for the codec H. 265. 
If you have a developer account, you can download macOS High Sierra beta 2 Update 1 right now. The Assembly came a week after the original release of beta 2. It is available for download through system updates in the Mac App Store.
macOS High Sierra can be installed on all Macs from 2009 model year. The final version of the operating system will be released this fall.
