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macOS Catalina (version 10.15) is the sixteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. It is the successor to macOS Mojave and was announced at WWDC 2019 on June 3, 2019 and released to the public on October 7, 2019.
Support status Windows: 10 and later, Server 2016 and later 131 2015– 7, Server 2008 R2, 8, Server 2012, 8.1 and Server 2012 R2: 109 [1] 2009–2023 XP, Server 2003, Vista and Server 2008: 49 (IA-32) 2008–2016 macOS: Big Sur and later 131 2020– Catalina: 128 [2] 2019–2024 High Sierra and Mojave: 116 [3] 2017–2023 El Capitan and Sierra ...
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 ...
It is also the final release with PowerPC Mac support. Mac OS X 10.6 Snow Leopard was the first version of Mac OS X to be built exclusively for Intel Macs, and the final release with 32-bit Intel Mac support. [39]
Mac OS X v10.4.0 Download for Darwin 8.0.1 can be found here; Mac OS X for Apple TV in Darwin 8.8.2; Stable kernel programming interface, finer-grained kernel locking, 64-bit BSD layer; launchd service management framework; Extended file attributes, access control lists; Commands such as cp and mv updated to preserve extended attributes and ...
macOS Big Sur (version 11) is the seventeenth major release of macOS, Apple's operating system for Macintosh computers. It was announced at Apple's Worldwide Developers Conference (WWDC) on June 22, 2020, [4] and was released to the public on November 12, 2020.
As with Mavericks and Mountain Lion, 2 GB of RAM, 8 GB of available storage, and Mac OS X Snow Leopard 10.6.8 or later are required. These are the models that are compatible with OS X Yosemite: iMac (Mid 2007 to Mid 2015) MacBook (Late 2008 to Mid 2010) 12-inch MacBook (2015) MacBook Air (Late 2008 to Early 2015) MacBook Pro (Mid 2007 to Mid 2015)
Apple's software license for macOS only permits the software's use on "Apple-branded Systems" [8] However, because many still-supported Macintosh computers use Intel-based hardware, it is often possible to run the software on other Intel-based PCs, with only a few technical hurdles. [9]