# System.Text.Json.Serialization

``` diff
 namespace System.Text.Json.Serialization {
+    public sealed class JsonRequiredAttribute : JsonAttribute {
+        public JsonRequiredAttribute();
+    }
-    [RequiresDynamicCodeAttribute("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")]
-    public class JsonStringEnumConverter : JsonConverterFactory
+    [RequiresDynamicCodeAttribute("JsonStringEnumConverter cannot be statically analyzed and requires runtime code generation. Consider authoring a custom converter that is not a factory to work around the issue. See https://github.com/dotnet/runtime/issues/73124.")]
+    public class JsonStringEnumConverter : JsonConverterFactory
 }
```

