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.
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.
And when you use i Cloud Photo Library, your album stays up to date on all your devices.
Instantly filter photo collections by your favorite criteria.
Have a favorite site where you always want videos to play?
Use new per‑site settings in Safari to enable media auto‑play.
When editing a Live Photo, try the new Loop effect to turn it into a looping video that you can experience again and again.
Try Bounce to play the action forward and backward.