path: root/release-notes/7.0/preview/api-diff/rc1/Microsoft.NETCore.App/7.0-rc1_System.Runtime.md

# System.Runtime

``` diff
 namespace System.Runtime {
+    public static class ControlledExecution {
+        [ObsoleteAttribute("ControlledExecution.Run method may corrupt the process and should not be used in production code.", DiagnosticId="SYSLIB0046", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
+        public static void Run(Action action, CancellationToken cancellationToken);
+    }
 }
```