OS X El Capitan Apple operating system for Macs.

Significant performance improvements

Better Spotlight search

Improved multi-window management

Revamped Notes app

Metal graphics technology

Pinned Sites and Tab Mute for Safari

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OS X 10.11 El Capitan, introduced at the Worldwide Developers Conference on June 8, is the next iteration of OS X, building on the features and design changes introduced with OS X Yosemite. OS X El Capitan might seem like a strange name, but it's meant to highlight the OS's position as an update that brings under-the-hood improvements and refinements to OS X Yosemite.


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Spotlight search, along with gaining deeper functionality and more sources, supports natural language input in El Capitan. Safari has gained Pinned Sites to let users pin favorite sites on the tab bar, and there's a handy new mute button that'll mute all sound coming from Safari or easily identify specific tabs playing audio.
Mail supports new iOS-style gestures for managing messages, and a Smart Suggestions addition will recognize names and events, allowing them to be quickly added to contacts and calendars. When in full screen, there are also tools to deal with multiple emails at one time.
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Window Management

Mission Control

Mission Control is OS X's window management feature. Accessible though the Mission Control app or by hitting F3 on Macs, it displays all open apps on your Mac and allows them to be organized into different spaces. In El Capitan, Mission Control has a cleaner, more streamlined design for quicker window organization.

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Split View

With Split View, it's possible to run two full screen apps side-by-side, with each one taking up half of a display. This is a useful way to focus on two apps simultaneously without the distractions of the rest of your desktop. For example, when taking notes from a website, you might open Pages and Safari at the same time, scrolling through content on one side while writing on the other side.
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Here's a full list of Macs that can run El Capitan:

• iMac (Mid 2007 or newer)
• MacBook Air (Late 2008 or newer)
• MacBook (Late 2008 Aluminum, or Early 2009 or newer)
• Mac mini (Early 2009 or newer)
• MacBook Pro (Mid/Late 2007 or newer)
• Mac Pro (Early 2008 or newer)
• Xserve (Early 2009)