The new version of JQuery v2.0 is released and now fully supports Windows Store App development in HTML5 and JavaScript.
The new version of the JQuery (v2.0) has the reduced file size of 12 percent smaller than the previous version of JQuery. The JQuery 2.0 leaves behind the Internet Explorer 6/7/8 but the JQuery team still supports the JQuery 1.x version which supports Internet Explorer 6/7/8 .
Know more about jQuery 2.0 , feature and official release here