Apple unveiled the newoperating system at its Worldwide Developers Conference on Monday, showing off the ability to create tabs in the finder and tag items to aid in search.
Craig Federighi, chief of iOS and OS X, said the new system aims to extend battery life and improve responsiveness.
When saving a file, users can add tags that will show up in the finder's sidebar, which should help when searching for files, Federighi said. The tabs feature allows users to open multiple windows in different tabs and multiple displays. Users can even connect to Apple TV on a second display.
Federighi showed off, , and iBooks, and noted some tweaks to notifications. Users will be able to access notifications received while the Mac is in sleep mode without unlocking the screen. Mavericks also will update apps automatically and send a notification when it's done.
While developers have immediate access to the system as of Monday, the public won't see it until this fall.
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