diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,6 +9,8 @@ This document follows the conventions laid out in [Keep a CHANGELOG][].

### Added

### Changed

### Fixed
@@ -960,3 +962,4 @@ This version improves performance on benchmarks significantly compared to 2.3.
[i238]: https://github.com/pythonnet/pythonnet/issues/238
[i1481]: https://github.com/pythonnet/pythonnet/issues/1481
[i1672]: https://github.com/pythonnet/pythonnet/pull/1672
diff --git a/src/embed_tests/TestConverter.cs b/src/embed_tests/TestConverter.cs
@@ -185,6 +185,15 @@ public void RawPyObjectProxy()
            Assert.AreEqual(pyObject.DangerousGetAddressOrNull(), proxiedHandle);
        }

        // regression for https://github.com/pythonnet/pythonnet/issues/451
        [Test]
        public void CanGetListFromDerivedClass()

diff --git a/src/runtime/Converter.cs b/src/runtime/Converter.cs
@@ -133,7 +133,8 @@ internal static NewReference ToPython(object? value, Type type)
            if (EncodableByUser(type, value))
            {
                var encoded = PyObjectConversions.TryEncode(value, type);
-                if (encoded != null) {
                    return new NewReference(encoded);
                }
            }
@@ -334,7 +335,7 @@ internal static bool ToManagedValue(BorrowedReference value, Type obType,

            if (obType.IsGenericType && obType.GetGenericTypeDefinition() == typeof(Nullable<>))
            {
-                if( value == Runtime.PyNone )
                {
                    result = null;
                    return true;
@@ -980,5 +981,11 @@ public static PyObject ToPython(this object? o)
            if (o is null) return Runtime.None;
            return Converter.ToPython(o, o.GetType()).MoveToPyObject();
        }
    }
}
-Original file line number
+Diff line change
@@ Expand Up / @@ -185,6 +185,15 @@ public void RawPyObjectProxy() @@
                 Assert.AreEqual(pyObject.DangerousGetAddressOrNull(), proxiedHandle);
             }
             // regression for https://github.com/pythonnet/pythonnet/issues/451
             [Test]
             public void CanGetListFromDerivedClass()
@@ Expand Down @@