diff --git a/include/v8.h b/include/v8.h
index f577e93..b35500d 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -1253,12 +1253,8 @@
 
   /**
    * Allocates a new string from either UTF-8 encoded or ASCII data.
-   * The second parameter 'length' gives the buffer length.
-   * If the data is UTF-8 encoded, the caller must
-   * be careful to supply the length parameter.
-   * If it is not given, the function calls
-   * 'strlen' to determine the buffer length, it might be
-   * wrong if 'data' contains a null character.
+   * The second parameter 'length' gives the buffer length. If omitted,
+   * the function calls 'strlen' to determine the buffer length.
    */
   V8EXPORT static Local<String> New(const char* data, int length = -1);
 
@@ -2306,7 +2302,8 @@
   static Local<FunctionTemplate> New(
       InvocationCallback callback = 0,
       Handle<Value> data = Handle<Value>(),
-      Handle<Signature> signature = Handle<Signature>());
+      Handle<Signature> signature = Handle<Signature>(),
+      int length = 0);
   /** Returns the unique function instance in the current execution context.*/
   Local<Function> GetFunction();
 
@@ -2318,6 +2315,9 @@
   void SetCallHandler(InvocationCallback callback,
                       Handle<Value> data = Handle<Value>());
 
+  /** Set the predefined length property for the FunctionTemplate. */
+  void SetLength(int length);
+
   /** Get the InstanceTemplate. */
   Local<ObjectTemplate> InstanceTemplate();
 
@@ -2330,7 +2330,6 @@
    */
   Local<ObjectTemplate> PrototypeTemplate();
 
-
   /**
    * Set the class name of the FunctionTemplate.  This is used for
    * printing objects created with the function created from the