https://www.cnbc.com/2017/09/25/how-to-get-macos-high-sierra.html

Apple rolled out its latest operating system for Macs on Monday, which the company sais will improve video streaming qualityand improve stability.

Apple's macOS High Sierra will also make it faster to find your files and emails, help you automatically organize and edit your photos, and mute autoplay videos on Apple's Safari browser among other improvements.