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diff --git a/release-notes/7.0/preview/api-diff/preview5/Microsoft.NETCore.App/7.0-preview5_System.Text.Json.md b/release-notes/7.0/preview/api-diff/preview5/Microsoft.NETCore.App/7.0-preview5_System.Text.Json.md
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+# System.Text.Json
+
+``` diff
+ namespace System.Text.Json {
+     public static class JsonSerializer {
+         public static object? Deserialize(Stream utf8Json, Type returnType, JsonSerializerOptions? options = null);
+         public static object? Deserialize(ReadOnlySpan<byte> utf8Json, Type returnType, JsonSerializerOptions? options = null);
+         public static object? Deserialize(ReadOnlySpan<char> json, Type returnType, JsonSerializerOptions? options = null);
+         public static object? Deserialize(string json, Type returnType, JsonSerializerOptions? options = null);
+         public static object? Deserialize(this JsonDocument document, Type returnType, JsonSerializerOptions? options = null);
+         public static object? Deserialize(this JsonElement element, Type returnType, JsonSerializerOptions? options = null);
+         public static object? Deserialize(this JsonNode? node, Type returnType, JsonSerializerOptions? options = null);
+         public static object? Deserialize(ref Utf8JsonReader reader, Type returnType, JsonSerializerOptions? options = null);
+         public static TValue? Deserialize<TValue>(Stream utf8Json, JsonSerializerOptions? options = null);
+         public static TValue? Deserialize<TValue>(ReadOnlySpan<byte> utf8Json, JsonSerializerOptions? options = null);
+         public static TValue? Deserialize<TValue>(ReadOnlySpan<char> json, JsonSerializerOptions? options = null);
+         public static TValue? Deserialize<TValue>(string json, JsonSerializerOptions? options = null);
+         public static TValue? Deserialize<TValue>(this JsonDocument document, JsonSerializerOptions? options = null);
+         public static TValue? Deserialize<TValue>(this JsonElement element, JsonSerializerOptions? options = null);
+         public static TValue? Deserialize<TValue>(this JsonNode? node, JsonSerializerOptions? options = null);
+         public static TValue? Deserialize<TValue>(ref Utf8JsonReader reader, JsonSerializerOptions? options = null);
+         public static ValueTask<object?> DeserializeAsync(Stream utf8Json, Type returnType, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default(CancellationToken));
+         public static ValueTask<TValue?> DeserializeAsync<TValue>(Stream utf8Json, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default(CancellationToken));
+         public static IAsyncEnumerable<TValue?> DeserializeAsyncEnumerable<TValue>(Stream utf8Json, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default(CancellationToken));
++        public static IAsyncEnumerable<TValue?> DeserializeAsyncEnumerable<TValue>(Stream utf8Json, JsonTypeInfo<TValue> jsonTypeInfo, CancellationToken cancellationToken = default(CancellationToken));
+         public static void Serialize(Stream utf8Json, object? value, Type inputType, JsonSerializerOptions? options = null);
+         public static string Serialize(object? value, Type inputType, JsonSerializerOptions? options = null);
+         public static void Serialize(Utf8JsonWriter writer, object? value, Type inputType, JsonSerializerOptions? options = null);
+         public static void Serialize<TValue>(Stream utf8Json, TValue value, JsonSerializerOptions? options = null);
+         public static void Serialize<TValue>(Utf8JsonWriter writer, TValue value, JsonSerializerOptions? options = null);
+         public static string Serialize<TValue>(TValue value, JsonSerializerOptions? options = null);
+         public static Task SerializeAsync(Stream utf8Json, object? value, Type inputType, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default(CancellationToken));
+         public static Task SerializeAsync<TValue>(Stream utf8Json, TValue value, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default(CancellationToken));
+         public static JsonDocument SerializeToDocument(object? value, Type inputType, JsonSerializerOptions? options = null);
+         public static JsonDocument SerializeToDocument<TValue>(TValue value, JsonSerializerOptions? options = null);
+         public static JsonElement SerializeToElement(object? value, Type inputType, JsonSerializerOptions? options = null);
+         public static JsonElement SerializeToElement<TValue>(TValue value, JsonSerializerOptions? options = null);
+         public static JsonNode? SerializeToNode(object? value, Type inputType, JsonSerializerOptions? options = null);
+         public static JsonNode? SerializeToNode<TValue>(TValue value, JsonSerializerOptions? options = null);
+         public static byte[] SerializeToUtf8Bytes(object? value, Type inputType, JsonSerializerOptions? options = null);
+         public static byte[] SerializeToUtf8Bytes<TValue>(TValue value, JsonSerializerOptions? options = null);
+     }
+     public sealed class JsonSerializerOptions {
+         public JsonConverter GetConverter(Type typeToConvert);
+     }
+     public ref struct Utf8JsonReader {
++        public bool ValueIsEscaped { get; }
++        public int CopyString(Span<byte> utf8Destination);
++        public int CopyString(Span<char> destination);
+     }
+ }
+```
+