net10.0-windows7.0 
namespace System
{
    public sealed class OperatingSystem : ICloneable, ISerializable
    {
        public static bool IsMacCatalystVersionAtLeast(int major, int minor = 0, int build = 0);
    }
}
nuget.org
0.0 %
Reference this API
.NET 6.07.08.09.010.0
Information specific to net10.0
Platforms This API is only available when you target a specific platform:
Windows 7.0
Information specific to net10.0-windows7.0
Assemblies

System.Runtime , Version=7.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

System.Runtime , Version=6.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

Your project needs a package reference to System.Runtime.Experimental.

Package System.Runtime.Experimental (7.0.0-preview.2.22152.2) net7.0
Platform Restrictions

This API is supported on all platforms.

  • Built-in API
  • Package-provided API