Safari now uses machine learning to identify advertisers and others who track your online behavior, and removes the cross‑site tracking data they leave behind. Now Safari keeps unexpected and unwanted videos with audio from playing in the first place, so you can browse in peace.
Have a favorite site where you always want videos to play?
Try Bounce to play the action forward and backward.
Instantly filter photo collections by your favorite criteria.
A new selection counter keeps track of what you’ve selected, and lets you drag and drop collected images into an album or export them to the desktop.
Use new per‑site settings in Safari to enable media auto‑play.
Personalize your browsing experience in Safari by enabling settings for individual websites, like page zoom level, location services, notifications, and content blockers. Siri has a more natural voice, with more changes in expression, intonation, and emphasis based on what it’s saying.
From rearchitecting how it stores your data to improving the efficiency of video streaming to unleashing the full power of your graphics processor, it’s all central to today’s Mac experience. It can compress video up to 40 percent more than H.264, the current standard for video compression.
Our current file system was designed in the early days of Mac, and it has performed beautifully ever since.New technologies at the heart of the system make your Mac more reliable, capable, and responsive — and lay the foundation for future innovations. But today’s flash‑based Mac systems open up new possibilities for innovation, so it’s time to lay a new foundation.mac OS High Sierra also refines the features and apps you use every day. mac OS High Sierra introduces new core technologies that improve the most important functions of your Mac. With mac OS High Sierra, we’re introducing the Apple File System to every Mac with all‑flash internal storage, with an advanced architecture that brings a new level of security and responsiveness.Remember when you looked at that green mountain bike online?And then saw annoying green mountain bike ads everywhere you browsed?Top Hits reflects the mail you’ve read, the senders you reply to, your VIPs, and more. mac OS High Sierra lets you save a special moment in a Face Time call as a Live Photo.