By dr_pompeii
via java.dzone.com
Submitted: Sep 27 2011 / 10:39
Ext JS 4 reorganized the API packages names and as a consequence, some classes has a new class name now. The Ext JS 3 class names are still valid in Ext JS 4, but when we are migrating an app from Ext JS 3 to Ext JS 4, it is recommended to change the class name as well.



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