OS X Mavericks is now available to download from the Mac App Store - and it's free. The operating system brings several key under-the-hood features to OS X, new versions of popular Apple iOS apps, and full support for multiple displays. Apple senior vice president of software engineering Craig Federighi briefly outlined some of the key technology improvements during the 22 October event. These include better battery life for laptops, compressed memory, and graphics improvements to make better use of both the memory and the CPU. He then revisited some of the features first demonstrated during June's WWDC, including Safari shared links, enhanced notifications, Finder tags, multiple display improvements, and new Maps and iBooks apps.
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机译：现在可以从Mac App Store下载OS X Mavericks，并且它是免费的。该操作系统为OS X带来了数项重要的后台功能，流行的Apple iOS应用程序的新版本以及对多个显示器的全面支持。苹果公司软件工程高级副总裁Craig Federighi简要概述了10月22日活动中的一些关键技术改进。这些措施包括延长笔记本电脑的电池寿命，压缩内存和改进图形以更好地利用内存和CPU。然后，他重新回顾了六月WWDC期间首次展示的一些功能，包括Safari共享链接，增强的通知，Finder标签，多项显示改进以及新的Maps和iBooks应用程序。
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