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diff --git a/release-notes/7.0/preview/api-diff/rc1/Microsoft.NETCore.App/7.0-rc1_System.Text.Json.Serialization.md b/release-notes/7.0/preview/api-diff/rc1/Microsoft.NETCore.App/7.0-rc1_System.Text.Json.Serialization.md
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+++ b/release-notes/7.0/preview/api-diff/rc1/Microsoft.NETCore.App/7.0-rc1_System.Text.Json.Serialization.md
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+# 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
+ }
+```
+