This is more of a personal blog post I am creating for my own referecne. We have migrated one of our apps from July/August version of Ext.Net (based on ExtJs 3.2.1) to Feb 19, 2011 (Revision 3469) version of Ext.Net (based on ExtJs 3.3.0).
There have been some breaking changes that I am enumerating for my reference so I can use this list when planning migration of other projects. This is a work in progress and I might add points to it as I find them out. So, here are some breaking changes that I have found: