Changes in jQuery version
<p>I have been working on jQuery version 1.3 (one of the most popular versions I guess) for long time and hence have not been able to keep track of the changes in the later versions.</p>

<p>So I just wanted to understand the changes that jQuery library has implemented from version 1.3 to the latest version 1.9
Specifically are there any changes related to jQuery AJAX implementation ?</p>
