diff --git a/Scripts/Node.cs b/Scripts/Node.cs
index 704e99d..b705627 100644
--- a/Scripts/Node.cs
+++ b/Scripts/Node.cs
@@ -52,7 +52,13 @@ namespace XNode {
             /// <summary> Allow connections where output value type is assignable from input value type (eg. Object --> ScriptableObject)</summary>
             InheritedInverse,
             /// <summary> Allow connections where output value type is assignable from input value or input value type is assignable from output value type</summary>
-            InheritedAny
+            InheritedAny,
+            /// <summary> Allow connections where input value type is castable from output value type. </summary>
+            Castable,
+            /// <summary> Allow connections where output value type is castable from input value type. </summary>
+            CastableInverse,
+            /// <summary> Allow connections where input value type is castable from output value type or output value type is castable from input value type. </summary>
+            CastableAny
         }
 
 #region Obsolete