diff --git a/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/DateOnlyClass.cs b/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/DateOnlyClass.cs
index 6fcef7bd704..dcbc08ee1ed 100644
--- a/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/DateOnlyClass.cs
+++ b/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/DateOnlyClass.cs
@@ -47,7 +47,6 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <example>Fri Jul 21 00:00:00 UTC 2017</example>
         [DataMember(Name = "dateOnlyProperty", EmitDefaultValue = false)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly DateOnlyProperty { get; set; }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/FormatTest.cs b/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/FormatTest.cs
index 80756709cda..490413dc296 100644
--- a/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/FormatTest.cs
+++ b/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/FormatTest.cs
@@ -178,7 +178,6 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <example>Sun Feb 02 00:00:00 UTC 2020</example>
         [DataMember(Name = "date", IsRequired = true, EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly Date { get; set; }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/NullableClass.cs b/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/NullableClass.cs
index 43fe8c92103..23bcdc890e2 100644
--- a/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/NullableClass.cs
+++ b/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/NullableClass.cs
@@ -92,7 +92,6 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets DateProp
         /// </summary>
         [DataMember(Name = "date_prop", EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly DateProp { get; set; }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/RequiredClass.cs b/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/RequiredClass.cs
index a1c904a838f..65eedd199ea 100644
--- a/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/RequiredClass.cs
+++ b/samples/client/petstore/csharp/restsharp/net7/EnumMappings/src/Org.OpenAPITools/Model/RequiredClass.cs
@@ -708,28 +708,24 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets RequiredNullableDateProp
         /// </summary>
         [DataMember(Name = "required_nullable_date_prop", IsRequired = true, EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly RequiredNullableDateProp { get; set; }
 
         /// <summary>
         /// Gets or Sets RequiredNotNullableDateProp
         /// </summary>
         [DataMember(Name = "required_not_nullable_date_prop", IsRequired = true, EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly RequiredNotNullableDateProp { get; set; }
 
         /// <summary>
         /// Gets or Sets NotRequiredNullableDateProp
         /// </summary>
         [DataMember(Name = "not_required_nullable_date_prop", EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly NotRequiredNullableDateProp { get; set; }
 
         /// <summary>
         /// Gets or Sets NotRequiredNotnullableDateProp
         /// </summary>
         [DataMember(Name = "not_required_notnullable_date_prop", EmitDefaultValue = false)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly NotRequiredNotnullableDateProp { get; set; }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/DateOnlyClass.cs b/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/DateOnlyClass.cs
index 4b9ee8fe482..6a039cbd26b 100644
--- a/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/DateOnlyClass.cs
+++ b/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/DateOnlyClass.cs
@@ -46,7 +46,6 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <example>Fri Jul 21 00:00:00 UTC 2017</example>
         [DataMember(Name = "dateOnlyProperty", EmitDefaultValue = false)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly DateOnlyProperty { get; set; }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/FormatTest.cs b/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/FormatTest.cs
index 6e53c579379..d471457caaf 100644
--- a/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/FormatTest.cs
+++ b/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/FormatTest.cs
@@ -174,7 +174,6 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <example>Sun Feb 02 00:00:00 UTC 2020</example>
         [DataMember(Name = "date", IsRequired = true, EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly Date { get; set; }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/NullableClass.cs b/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/NullableClass.cs
index 43fe8c92103..23bcdc890e2 100644
--- a/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/NullableClass.cs
+++ b/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/NullableClass.cs
@@ -92,7 +92,6 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets DateProp
         /// </summary>
         [DataMember(Name = "date_prop", EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly DateProp { get; set; }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/RequiredClass.cs b/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/RequiredClass.cs
index 93e4c273108..a89715ade7f 100644
--- a/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/RequiredClass.cs
+++ b/samples/client/petstore/csharp/restsharp/net7/Petstore/src/Org.OpenAPITools/Model/RequiredClass.cs
@@ -704,28 +704,24 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets RequiredNullableDateProp
         /// </summary>
         [DataMember(Name = "required_nullable_date_prop", IsRequired = true, EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly RequiredNullableDateProp { get; set; }
 
         /// <summary>
         /// Gets or Sets RequiredNotNullableDateProp
         /// </summary>
         [DataMember(Name = "required_not_nullable_date_prop", IsRequired = true, EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly RequiredNotNullableDateProp { get; set; }
 
         /// <summary>
         /// Gets or Sets NotRequiredNullableDateProp
         /// </summary>
         [DataMember(Name = "not_required_nullable_date_prop", EmitDefaultValue = true)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly NotRequiredNullableDateProp { get; set; }
 
         /// <summary>
         /// Gets or Sets NotRequiredNotnullableDateProp
         /// </summary>
         [DataMember(Name = "not_required_notnullable_date_prop", EmitDefaultValue = false)]
-        [JsonConverter(typeof(OpenAPIDateConverter))]
         public DateOnly NotRequiredNotnullableDateProp { get; set; }
 
         /// <summary>