Mac OS X v10.9.0 Mavericks Gold Master | 5 GB
The next version of the Mac operating system, OS X 10.9, is officially labeled as OS X Mavericks. Named after a famous surfing location in California, Mavericks brings better performance and battery life, the ability to tag files, folders and documents, better support for multiple displays, a new version of Finder with support for tabs, a new version of Safari, as well as many other fixes and improvements. This is the final version that will ultimately be released to the public when Apple launches the OS in the coming weeks.