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e. 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. Catalina is the first version of macOS to support only 64-bit applications ...
macOS. The Mac transition to Intel processors was the process of switching the central processing units (CPUs) of Apple 's line of Mac and Xserve computers from PowerPC processors over to Intel 's x86-64 processors. [a] The change was announced at the 2005 Worldwide Developers Conference (WWDC) by then-Apple CEO Steve Jobs, who said Apple would ...
macOS. 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 ...
An exception to this was the Developer Transition Kit, which always reported the system version as "11.0". [9] macOS Big Sur started reporting the system version as "11.0" on all Macs as of the third beta release. To maintain backwards compatibility, macOS Big Sur identified itself as 10.16 to legacy software and in the browser user agent. [10]
Intel-based Macs would run a new recompiled version of OS X along with Rosetta, a binary translation layer which enables software compiled for PowerPC Mac OS X to run on Intel Mac OS X machines. [139] The system was included with Mac OS X versions up to version 10.6.8. [140] Apple dropped support for Classic mode on the new Intel Macs.
Darwin is the core Unix-like operating system of macOS (previously OS X and Mac OS X), iOS, watchOS, tvOS, iPadOS, audioOS, visionOS, and bridgeOS. It previously existed as an independent open-source operating system, first released by Apple Inc. in 2000. It is composed of code derived from NeXTSTEP, FreeBSD, [ 3] other BSD operating systems ...
macOS Sequoia (version 15) is the upcoming major release of Apple's macOS operating system. The successor to macOS Sonoma , it was announced at WWDC 2024 on June 10, 2024. [ 6 ] It is named after Sequoia National Park , which is located in the Sierra Nevada mountain range.
The system was launched as Mac OS X, renamed OS X from 2012—2016, [10] and then renamed macOS as the current Mac operating system that officially succeeded the classic Mac OS in 2001. The system was originally marketed as simply "version 10" of Mac OS, but it has a history that is largely independent of the classic Mac OS.