# System.Data

``` diff
 namespace System.Data {
     public enum SerializationFormat {
-        Binary = 1,
+        [ObsoleteAttribute("SerializationFormat.Binary is obsolete and should not be used. See https://aka.ms/serializationformat-binary-obsolete for more information.", DiagnosticId="SYSLIB0038")]
+        Binary = 1,
     }
 }
```

