diff --git a/csharp/test/Microsoft.ML.OnnxRuntime.Tests.NetCoreApp/InferenceTest.netcore.cs b/csharp/test/Microsoft.ML.OnnxRuntime.Tests.NetCoreApp/InferenceTest.netcore.cs
index 139d588f27..30fd66b446 100644
--- a/csharp/test/Microsoft.ML.OnnxRuntime.Tests.NetCoreApp/InferenceTest.netcore.cs
+++ b/csharp/test/Microsoft.ML.OnnxRuntime.Tests.NetCoreApp/InferenceTest.netcore.cs
@@ -337,6 +337,9 @@ namespace Microsoft.ML.OnnxRuntime.Tests
                 { "test_optional_get_element_sequence", "not implemented yet"},
                 { "test_optional_has_element", "not implemented yet"},
                 { "test_optional_has_element_empty", "not implemented yet"},
+                { "test_identity_opt", "opset16 version not implemented yet"},
+                { "test_if_opt", "opset16 version not implemented yet"},
+                { "test_loop16_seq_none", "opset16 version not implemented yet"},
             };
 
             // The following models fails on nocontribops win CI