      *  Code can compare this constant against
      *  the <code>compatibilityVersion</code>
      *  to implement version-specific behavior.
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     public static const VERSION_4_0:uint = 0x04000000;
 

     *  Code can compare this constant against
     *  the <code>compatibilityVersion</code>
     *  to implement version-specific behavior.
     */
    public static const VERSION_2_0_1:uint = 0x02000001;


     *  A String passed as a parameter
     *  to the <code>compatibilityErrorFunction()</code> method
     *  if the compatibility version has already been set.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    public static const VERSION_ALREADY_SET:String = "versionAlreadySet";
        // Also used as resource string, so be careful changing it.
