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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.
macOS Big Sur was announced on June 22, 2020, during the WWDC20 keynote speech. [77] It was released November 12, 2020. [78] The major version number is changed, for the first time since "Mac OS X" was released, making it macOS 11. It brings ARM support, new icons, GUI changes to the system, [79] and other bug fixes. Since macOS 11.2.3, it is ...
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.
macOS Monterey is the final version of macOS that supports the 2015–2017 MacBook Air, Retina MacBook Pro, 2014 Mac Mini, 2015 iMac and cylindrical Mac Pro, as its successor, macOS Ventura, drops support for those models. It is the last version of macOS that can run on Macs with 4GB of RAM.
macOS Big Sur works on Intel processors. But in 2020, Apple began to move to ARM64-based Apple silicon processors, and announced it will eventually stop supporting the Intel64 architecture. [ 12 ]
Although Apple started including the underlying iODBC libraries in Mac OS X Jaguar, [120] and continued to do so through at least macOS Big Sur, [121] Apple only included their ODBC Administrator through Mac OS X Leopard, and temporarily made it available as a separate download (since removed) for Snow Leopard.
Support for Rosetta was dropped with the release of Mac OS X Lion (10.7) in 2011. Rosetta 2, introduced in 2020 as a component of macOS Big Sur, is part of the Mac transition from Intel processors to Apple silicon, allowing Intel applications to run on Apple silicon-based Macs. [3]
In 1999, Mac OS X Server 1.0 was released, followed by Mac OS X 10.0, the first consumer release of the Mac OS X. From the release of Mac OS X 10.0 until early 2007, Mac OS X was the only software platform. In early 2007, iPhone OS was introduced, increasing the number of software platforms by one, from one to two. In 2010, iPhone OS was ...