I looked into lot of stackoverflow questions and answers but mine one seems bit different. I am trying to run my application in IE11 with jQuery v1.8.3.
When I try to print $.browser.msie it return undefined. When I print $.browser, i notice property 'Mozilla'. 
{
   [functions]: ,
   __proto__: { },
   mozilla: true,
   version: "11.0"
}
I have tried referring jQuery Migrate (jquery-migrate-1.4.1.js) but no luck.
If I try to use (/msie|trident/i).test(navigator.userAgent) is works and return true.
P.S With due respect, I am not looking for identifying IE browser. I am trying to understand the current behavior and any way this could be fixed.
Update:
I noticed that navigator.userAgent is 
"Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; wbx 1.0.0; rv:11.0) like Gecko"
And then when this function is called, it returns 'Mozilla'
jQuery.uaMatch = function( ua ) {
    ua = ua.toLowerCase();
    var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
        /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
        /(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
        /(msie) ([\w.]+)/.exec( ua ) ||
        ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
        [];
    return {
        browser: match[ 1 ] || "",
        version: match[ 2 ] || "0"
    };
};

