Whats new in version 10.8.3:The 10.8.3 update includes features and fixes that improve the stability, compatibility, and security of your Mac, including the following:
• The ability to redeem iTunes gift cards in the Mac App Store using your Mac's built-in camera
• Boot Camp support for installing Windows 8
• Boot Camp support for Macs with a 3TB hard drive
• A fix for an issue that could cause a file URL to quit apps unexpectedly
• A fix for an issue that may cause Logic Pro to become unresponsive when using certain plug-ins
• A fix for an issue that may cause audio to stutter on 2011 iMacs
• Includes Safari 6.0.3
Publisher review:Mac OS X 10.8 Mountain Lion is the new operating system Mac OS X primarily focused on data synchronization and cross the activities and applications between different iDevices in your possession. More than 200 features emerge with iCloud focus. This tool allows you to find discount all your email, calendars, notes, documents and reminders on your iPhone, iPad or Mac.
iMessage is part of the long-awaited news that offers the opportunity to converse with anyone with an iDevice. A Notification Center makes keeping track of all the news and information that pass through your Mac: all new mail, RSS or alerts reach you in one place.
Community, social networking and sharing of data is also a central concern of the new OS, with shortcuts directly implemented in your applications Safari, AirDrop, Mail, iPhoto or Photo Booth.
Game Center finally worth talking about with pride to the community by providing the opportunity to play against other players from around the world on the various iDevices compatible games. Challenges, historical and scoreboards allow you to compete with others.
Operating system:Mac OS X 10.6.8 or later
Mac OS X Mountain Lion 10.8.3 details 
