If you modify a class's class definition in the Class Hierachy (and in some versions, the Class) Browsers, thus creating a new version of the class, the browser keeps the reference to the previous version of the class. As a result, the changes you made in the class are not visible. In addition, in some versions, the class definition reports for inDictionary: that "(class not in your dictionaries)".
Modify class definitions using the System Browser.
Last updated: 8/2/17