1.6
Upgrade if you are experiencing an unexpected T_FUNCTION error, which displays when your PHP version is below 5.3.
1.3
No new functionality in this version.
1.2
You should upgrade to version 1.2 so that you can use the "title" attribute and to have it better find and display your menus.
1.1
You should upgrade from 1.0 so that it is easier to understand what menu name you are specifying. Before, where you would have specified [menu Menu Name] you now write it like [menu name="Menu Name"]. Much more cleaner and easier to read.