Apple has just revealed via their website that macOS Sierra will be available free to current users on September 20th. This update will bring a ton of new features including Siri for Mac. This site will be releasing tools and a full guide available after macOS Sierra launches. We also expect the Public Beta of the GM 'Golden Master' will be released sometime this week; the Developer GM has been released today.
Source: ...
macOS Sierra Upgrade Available on September 20th
Source: ...
macOS Sierra Upgrade Available on September 20th