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.

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Today’s Mac experience relies more than ever on the graphics processor (GPU) in your computer. Metal is a technology built into mac OS that allows apps to unleash the full power of the GPU.

Now Metal 2 not only takes the visual experience to the next level, but also adds capabilities like machine learning, virtual reality, and external GPU support for entertainment and professional creative apps.

You can also rotate and favorite batches of images right from the toolbar.

Easily make sophisticated contrast and color adjustments to your photos with powerful tools like Curves for fine‑tuning contrast and Selective Color to make any color more saturated.

Try Bounce to play the action forward and backward.

Or choose Long Exposure for a beautiful DSLR‑like effect to blur water or extend light trails.

An expanded Import view shows all of your past imports in chronological order, so you can go right to last month’s vacation photos.

And the albums you make are always where you can see them.

You can also trim, mute, and select a key photo for each Live Photo.