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Apple strengthened Mac OS X by implementing stack protection, and sandboxing more Mac OS X components such as the H.264 decoder in QuickTime and browser plug-ins as a separate process in Safari. [61] Secure virtual memory was an option in earlier releases on Snow Leopard, but the checkbox to disable it was removed later.
The history of macOS, Apple's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project to replace its "classic" Mac OS. That system, up to and including its final release Mac OS 9 , was a direct descendant of the operating system Apple had used in its Mac computers since their ...
The first version of Mac OS X, Mac OS X Server 1.0, was a transitional product, featuring an interface resembling the classic Mac OS, though it was not compatible with software designed for the older system. Consumer releases of Mac OS X included more backward compatibility.
The final stable version of Safari 2 and the last version released exclusively with Mac OS X, Safari 2.0.4, was updated on January 10, 2006, for Mac OS X. It was only available within Mac OS X Update 10.4.4, and it delivered fixes to layout and CPU usage issues among other improvements. [20]
OS X Mountain Lion (version 10.8) is the ninth major release of macOS, Apple Inc.'s desktop and server operating system for Macintosh computers. OS X Mountain Lion was released on July 25, 2012, [3] for purchase and download through the Mac App Store, as part of a switch to releasing OS X versions online and every year, rather than every two years.
Mac OS X Leopard is the last version of macOS that supports the PowerPC architecture as its successor, Mac OS X Snow Leopard, functions solely on Intel based Macs. According to Apple, Leopard contains over 300 changes and enhancements compared to its predecessor, Mac OS X Tiger, [ 9 ] covering core operating system components as well as ...
Mac OS X 10.7.1 was the last version of Mac OS X released under CEO Steve Jobs. 10.7.2 and later were released under CEO Tim Cook. 10.7.5 added Gatekeeper. [ 14 ] Lion is the first version of macOS that did not support 32-bit processors and is also the final release whose development was overseen by Bertrand Serlet , considered to be the ...
Mac OS X v10.2.8 7.0 October 24, 2003 Mac OS X Panther: Mac OS X v10.3.0 BSD layer synchronized with FreeBSD 5; Automatic file defragmentation, hot-file clustering and optional case sensitivity in HFS+; Bash instead of tcsh as default shell; Read-only NTFS support (Darwin 7.9) [29] 7.9 April 15, 2005 Mac OS X v10.3.9 8.0 April 29, 2005