Related Terms. Mac OS X Mavericks, or simply OS X Mavericks, is version 10.9 of Apple Computer's operating system for Macintosh desktop, laptop and server computers.

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The Mavericks release is the tenth update for M ac OS X, following earlier updates for the operating system: Cheetah (v10.0), Puma (v10.1), Jaguar (v10.2), Panther (v10.3), Tiger (v10.4), (v10.5), (v10.6), (v10.7) and (v10.8). After running out of viable feline-themed names, Apple is leaving behind the big cat-based nomenclature of previous OS X releases and starting a new series of names based on locations in Apple's home state of California. OS X Mavericks takes its name from a popular surfing spot near San Francisco. What's New in Mavericks? As with OS X Mountain Lion, the most noticeable of the more than 200 enhancements in OS X Mavericks are features and applications that have migrated over from Apple's, particularly new Maps and apps as well as an enhanced version of the web browser. Other additions in the Mac OS X Mavericks release include new Finder Tabs and Tags and enhanced multi-display support.