OS X 10.11 El Capitan (Developer Preview 1)

More than ever, Mac is the computer people love to use. And one of the biggest reasons is OS X. It’s what makes a Mac a Mac. With OS X, it’s simple to do amazing things and delightful to do all the everyday things. OS X El Capitan builds on the groundbreaking features and beautiful design introduced in OS X Yosemite, refining the experience and improving performance in lots of little ways that make a big difference. OS X El Capitan — it takes the Mac experience to new heights.

Experience
OS X El Capitan gives you even simpler, smarter ways to do the things you do most with your Mac. Like working in multiple apps at the same time. Searching for information. Keeping tabs on your favorite websites. Checking email. Taking notes. And much more.

Performance
Improvements under the hood make your Mac snappier and more efficient in all kinds of everyday tasks — from opening PDFs to accessing your email. And with Metal for Mac, you get faster and more fluid graphics performance in games, high-performance apps, and many other places.

Who says you can’t focus on two things at once?
Running lots of apps at the same time is one of the great things about using a Mac. Focusing on just one app in full-screen view is another. With Split View, you get the best of both. It automatically fills your screen with the two apps you choose. So you can make dinner plans with a friend in Messages while finding the restaurant in Maps. Or work on a document in Pages while doing your research in Safari. All without the distraction of your other open apps, and without having to manually resize and drag windows around. And your desktop is always just a swipe away, so it’s easy to get back to everything else you were doing.

Mission Control
You’ve never been so good at space management.
A streamlined Mission Control makes it easier to see and organize everything you have open on your Mac. With a single swipe, all the windows on your desktop arrange themselves in a single layer, with nothing stacked or hidden. Mission Control places your windows in the same relative location, so you can spot the one you’re looking for more quickly. And when you have lots of windows competing for real estate, it’s now even simpler to make more room for them. Just drag any window to the top of your screen, and drop it into a new desktop space. It’s never been this easy to spread out your work.