Do we still have to add requres for core Ext classes?

Is this still necessary to do this in our containers?

requires: ['Ext.MessageBox', 'Ext.ActionSheet']

?

If you want to use them then yes.

Really? Because I have not been explicitly including those in the requires and my application still works fine. I've only require my own app classes.

I'm using sencha-touch-all-debug.js

You don't need to require classes that are directly under Ext (ext: Ext.Panel) but you do need to require them if they are in a deeper namespace. Ex: Ext.dataview.List

MessageBox isn't required at the moment. Ext.ActionSheet would be.

I must be missing something. I am using MessageBox and ActionSheet in my ST2 b3 code in my app and have not explicitly added any of them to requires. yet my app works fine. I'm just wondering if this will bite me later.