Its changes include translucency in various places, a new abstract wallpaper for the first time and a new color palette. MacOS Big Sur refreshes the design of the user interface, described by Apple as the biggest change since the introduction of Mac OS X.
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'. 4.8 Other applications found in macOS 11 Big Sur.3.3.2 Support for iOS and iPadOS applications.
