release-notes/7.0/preview/api-diff/preview6/Microsoft.NETCore.App/7.0-preview6_System.Runtime.CompilerServices.md


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# System.Runtime.CompilerServices

``` diff
 namespace System.Runtime.CompilerServices {
+    public class MetadataUpdateOriginalTypeAttribute : Attribute {
+        public MetadataUpdateOriginalTypeAttribute(Type originalType);
+        public Type OriginalType { get; }
+    }
 }
```