You only need to raise the deployment target if your own code uses APIs that were added in a macOS version higher than what Qt defaults to, and you are not using checks to guard their use at runtime. Qt expresses the deployment target via the CMAKE_OSX_DEPLOYMENT_TARGET or QMAKE_MACOSX_DEPLOYMENT_TARGET variables, which by default is set to the minimum supported deployment target for Qt. If the binary is launched on a macOS version below the deployment target macOS or Qt will give an error message and the application will not run. In theory this would allow running your application on every single macOS version released, but for practical (and technical) reasons there is a lower limit to this range, known as the deployment target of your application. When the binary is run on a macOS version lower than the SDK it was built with, Qt will check at runtime whether or not a platform feature is available before utilizing it. 14.sdk Target Platformsīuilding for macOS utilizes a technique called weak linking that allows you to build your application against the headers and libraries of the latest platform SDK, while still allowing your application to be deployed to macOS versions lower than the SDK version. app /Contents /Developer /Platforms /MacOSX. To open the Visual Studio Update, select Visual Studio > Check for Updates./Applications /Xcode. You can use the Visual Studio Update box to check for new updates, change channels, and download and install updates. These releases may not be reliable for everyday use.
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