Upgrading from 4.1.0 to 4.1.1a, we noticed that the Ext.tree.Column no longer has a renderer method. In fact, it was renamed as 'treeRenderer' instead.
We used to extend this class and its renderer method, but it no longer works when using 4.1.1a. We want to support both versions. Does anyone know why this backward incompatible change was made ? Or, if there's a clean solution we could implement to solve our issue ?