http://www.techradar.com/news/macos-1013-high-sierra-release-date-news-and-features

Earlier this year, at Apple’s Worldwide Developers Conference (WWDC 2017), the company revealed the follow-up to macOS Sierra, comically dubbed macOS High Sierra. As you might expect from a name change that subtle, the transition from macOS Sierra appears to be similar in magnitude to those we saw when OS X Leopard became Snow Leopard.

Last year’s update to the Mac OS X of old was very well received, bringing better integration between Macs running the software and iPhones and Apple Watch devices. High Sierra, on the other hand, seems to be iterating on functionality that’s already in place. Nevertheless, here's everything we know so far.