When I devloping my modules I am using EXT.NET (Sencha Ext JS JavaScript Library for ASP.NET).
I have successfully developed few modules combining DNN template modules and EXT.NET.

Few Days ago I upgraded my test environment to DNN 7.1.0 and My modules stop working.

I got errors inside javascripts writen in View.aspx

One of erros looks like this

https://picasaweb.google.com/lh/photo/6LEjCmzVi8Kr2o-fm-ZCYdMTjNZETYmyPJy0liipFm0?feat=directlink

Strange thing is that this piece of code works without problems on DNN 7.0.(0-6) versions

This is another one function in JS whic do not works since 7.1 version

var printTypes = App.PrintTypesStore.data.items;
var buttons = []
for (i in printTypes) {
buttons.push({ text: printTypes[i].data.Caption, iconCls: 'icon-report', command: 'print-' + printTypes[i].data.Folder + '-' + printTypes[i].data.Report });
}
toolbar.add(new Ext.Button({
text: 'Print',
iconCls: 'icon-printer',
menu: buttons
}));

Chrom's F12 pont me to exception
Uncaught TypeError: Cannot read property 'Caption' of undefined

Is there something new in DNN 7.1.0 regarding javascript that developers should pay attention.

I saw at relase notes that JQuery updated to JQuery 1.9.1