Developer Transition Kit (only up to Big Sur 11.3 beta 2 )īy using patch tools, macOS Big Sur can be installed on earlier computers that are officially unsupported, such as the 2012 iMac and the 2012 MacBook Pro.Unlike macOS Catalina, which supported every standard configuration Mac that Mojave supported, Big Sur drops support for various Macs released in 20. To maintain backwards compatibility, macOS Big Sur identified itself as 10.16 to software and in the browser user agent. macOS Big Sur started reporting the system version as '11.0' on all Macs as of the third beta release. An exception to this was the Developer Transition Kit, which always reported the system version as '11.0'. Providing some indication as to how the pre-release operating system may have been viewed internally at Apple during its development cycle, documentation accompanying the initial beta release of macOS Big Sur referred to its version as '10.16', and when upgrading from prior versions of macOS using the Software Update mechanism to early beta releases, the version referred to was '10.16'. The operating system is named after the coastal region of Big Sur in the Central Coast of California, continuing the naming trend of California locations that began with OS X Mavericks.

To mark the transition, the operating system's major version number was incremented, for the first time since 2001, from 10 to 11. It is also the first macOS version to support Macs with ARM-based processors. Most notably, macOS Big Sur features a user interface redesign that features new blurs to establish a visual hierarchy and also includes a revamp of the Time Machine backup mechanism, among other changes. īig Sur is the successor to macOS Catalina, and was succeeded by macOS Monterey, which was released on October 25, 2021. It was announced at Apple's Worldwide Developers Conference (WWDC) on June 22, 2020, and was released to the public on November 12, 2020. MacOS Big Sur (version 11) is the seventeenth major release of macOS, Apple Inc.'s operating system for Macintosh computers.

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