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System.Drawing.Common config switch removed

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The System.Drawing.Common NuGet package has been attributed as a Windows-specific library since .NET 6 and using it resulted in compile-time warnings and run-time exceptions. The runtime configuration switch to re-enable usage of the package on non-Windows operating systems has been removed in .NET 7.

Old behavior

Prior to .NET 6, using the System.Drawing.Common package did not produce any compile-time warnings, and no run-time exceptions were thrown. In .NET 6, you could set the System.Drawing.EnableUnixSupport runtime configuration setting to re-enable non-Windows support.

New behavior

Starting in .NET 7, the System.Drawing.EnableUnixSupport switch has been removed and you can no longer use the System.Drawing.Common package on non-Windows operating systems.

Version introduced

.NET 7

Type of breaking change

This change is a behavioral change.

Reason for change

The switch to re-enable functionality on non-Windows operating systems was added in .NET 6 to give customers time to migrate to an alternative, modern library. Now that .NET 7 has been released, the switch has been removed. For more information, see Reason for change (.NET 6 breaking change).

To use these APIs for cross-platform apps, migrate to an alternative library, such as one of the following:

Affected APIs

See Affected APIs (.NET 6 breaking change).

See also