1, Ext JS retains ext net web application development pdf dependencies on external libraries, instead making their use optional. 0 was released on 4 December 2007. This version was promoted as providing an interface and features more similar to those traditionally associated with desktop applications.
Also promoted were the new user documentation, API documentation, and samples. 0 did not provide a backward compatibility with version 1.
A migration guide was developed to address this. 0 was released on 6 July 2009. This version added communication support for REST and a new Ext. It was backwards compatible with version 2.
0 of the Ext framework was released on April 26, 2011. It includes a completely revised class structure, a revised data package, an animation and drawing package that uses SVG and VML, and revised charting and theming.
0 of the Ext JS framework was released on June 2, 2014. Ext JS 5 also includes an upgraded touch-optimized charting package along with additional financial charting capabilities. On the mobile platform, Ext JS 5 supports Safari on iOS 6 and 7, Chrome on Android 4.