1.5-alpha-releasenotes.html

<h2>Change Log</h2>

<ul>
	<li>Rewrite of the Ajax module by Julian Aubourg. This is the most significant change in this release and brings a number of performance, stability, and feature improvements to $.ajax. More information can be found above. <a href="http://bugs.jquery.com/ticket/7195">#7195</a></li>
	<li>Removed the possibility of expando collisions when using noConflict() (V8 is fast!). The expando string now uses a random number + jQuery version to differentiate between instances of jQuery instead of millisecond clock time. <a href="http://bugs.jquery.com/ticket/6842">#6842</a></li>
	<li>Deduplicated code in $.get and $.post. <a href="http://bugs.jquery.com/ticket/7847">#7847</a></li>
	<li>When a native browser event is bubbling up the DOM, make sure that the correct isDefaultPrevented value is reflected by jQuery's Event object. <a href="http://bugs.jquery.com/ticket/7793">#7793</a></li>
	<li>No longer cache non-html strings in buildFragment to avoid possible collision with the names of Object methods like toString. Testing shows this may also provide modest performance improvements. <a href="http://bugs.jquery.com/ticket/6779">#6779</a></li>
	<li>Updated cloneCopyEvent so that it does not create superfluous data objects when cloning elements. Exposes a new method, $.hasData, for determining whether or not an object has any data. <a href="http://bugs.jquery.com/ticket/7165">#7165</a></li>
	<li>Use a for loop rather than for/in loop when copying events so that code will work with an augmented Array.prototype. <a href="http://bugs.jquery.com/ticket/7809">#7809</a>, <a href="http://bugs.jquery.com/ticket/7817">#7817</a></li>
	<li>Fixed fadeIn not working properly with inline elements. <a href="http://bugs.jquery.com/ticket/7397">#7397</a></li>
	<li>Rewrote IE's clone function to function properly in all known cases. <a href="http://bugs.jquery.com/ticket/4386">#4386</a>, <a href="http://bugs.jquery.com/ticket/5566">#5566</a>, <a href="http://bugs.jquery.com/ticket/6997">#6997</a></li>
	<li>Fixed IE breaking when dispatching a 'submit' event on plain JS objects. <a href="http://bugs.jquery.com/ticket/6398">#6398</a></li>
	<li>Fixed a regression in 1.4 that caused cache control to be set incorrectly for script transport. <a href="http://bugs.jquery.com/ticket/7578">#7578</a></li>
	<li>Improve performance of get() for negative indices. <a href="http://bugs.jquery.com/ticket/5476">#5476</a></li>
	<li>hasClass, removeClass didn't work in IE if the attribute contained a carriage return (\r) character. <a href="http://bugs.jquery.com/ticket/7673">#7673</a></li>
	<li>Fix a regresion in 1.4.4 where calling $.fn.data without arguments breaks on non-DOM elements. <a href="http://bugs.jquery.com/ticket/7524">#7524</a></li>
	<li>Fixed memory leaks in IE caused by the custom abort function of $.ajax. <a href="http://bugs.jquery.com/ticket/6242">#6242</a></li>
	<li>Prevent live events from firing on disabled elements in IE. <a href="http://bugs.jquery.com/ticket/6911">#6911</a></li>
	<li>Fixed a regression in 1.4.3 that caused sending a Location object to $.ajax to no longer work. <a href="http://bugs.jquery.com/ticket/7531">#7531</a></li>
	<li>Fixed an issue where some traversal methods performed an unnecessary uniqueness check.  <a href="http://bugs.jquery.com/ticket/7964">#7964</a></li>
	<li>We now support being able to specify callbacks to handle specific status codes<a href="http://bugs.jquery.com/ticket/4964">#4964</a></li>
	<li>Fixed an issue where ?? wasn't supported as a context-insensitive placeholder for the callback name of a JSONP request. <a href="http://bugs.jquery.com/ticket/4897">#4897</a></li>
	<li>Data returned from dataFilter was not being passed to ajax complete() callbacks. We now use the jXHR's promise interface to get the actual response. <a href="http://bugs.jquery.com/ticket/4825">#4825</a></li>
	<li>We now ensure that buildFragment clones elements properly in all browsers. <a href="http://bugs.jquery.com/ticket/6655">#6655</a> and <a href="http://bugs.jquery.com/ticket/3879">#3879</a> </li>
	  <li>Fixed a regression where animating the width of elements failed when inline styles where initialized to a width of 0 using Opera 10.x and 11.x. <a href="http://bugs.jquery.com/ticket/6655">#7608</a></li>
	 <li>A memory leak caused when binding custom events in IE8 was fixed <a href="http://bugs.jquery.com/ticket/7054">#7054</a></li>
	 <li>Lines in form data are now delimited by CRLF when the form is submitted (as recommended by the W3C). <a href="http://bugs.jquery.com/ticket/6876">#6876</a></li>
	    <li>Ajax requests now abort on unload such that the event is only bound if the xhr transport is used. <a href="http://bugs.jquery.com/ticket/5280">#5280</a></li>
	<li>We now support =? being detected even if it has been escaped during data serialization. <a href="http://bugs.jquery.com/ticket/5812">#5812</a></li>
	<li>If the user uses the jsonpCallback setting we now automatically set the dataType to 'jsonp'. <a href="http://bugs.jquery.com/ticket/5803">#5803</a></li>
	<li>The crossDomain option now forces ajax to consider a request as cross-domain, even when its not. This is useful when servers issue redirects to cross-domain urls. <a href="http://bugs.jquery.com/ticket/5955">#5955</a></li>
	<li>$.ajax(this) allowing retries without the recursion errors found in jQuery 1.4.3. <a href="http://bugs.jquery.com/ticket/7461">#7461</a></li>
	<li>Removed a patch for very early versions of Opera 9 that made it impossible to animate values smaller than -10000. <a href="http://bugs.jquery.com/ticket/7193">#7193</a></li>  
	 <li>ResponseText is now properly propagated for error callbacks. <a href="http://bugs.jquery.com/ticket/7868">#7868</a></li>    
	<li>Scripts onload handler passes event as first parameter so statusText is now passed as second argument for aborts. <a href="http://bugs.jquery.com/ticket/7865">#7865</a></li> 
	 <li>With respect to xhr, setting contentType to false will now prevent the Content-Type header from being sent. <a href="http://bugs.jquery.com/ticket/7465">#7465</a></li>  
	  <li>When serializing text, we now encode all line breaks as CRLF pairs per the application/x-www-form-urlencoded specification. <a href="http://bugs.jquery.com/ticket/6876">#6876</a></li>    
	<li>Fixed a bug with IE6 where certain event handlers were causing inter-page memory leaks. <a href="http://bugs.jquery.com/ticket/7762">#7762</a></li>
	<li>Tests for cross-domain detection now include checking for protocol, hostname and port. <a href="http://bugs.jquery.com/ticket/7465">#7465</a></li>
	<li>Fixed a problem where IDs containing a period would break find() without returning results. <a href="http://bugs.jquery.com/ticket/7533">#7533</a></li>
	<li>The regression with next/adjacent selectors no longer working without the 'prev' element has been corrected. <a href="http://bugs.jquery.com/ticket/7452">#7452</a></li>
	<li>Fixed the 1.4.3 regression which prevented the use of attr() on anything but DOM element nodes where the nodeType was 1 <a href="http://bugs.jquery.com/ticket/7452">#7452</a>, <a href="http://bugs.jquery.com/ticket/7500">#7500</a>, <a href="http://bugs.jquery.com/ticket/7202"></a></li>
	<li>A bug where including jQuery 1.3.2 resulted in a border on the right-hand side of the screen in IE8 has been fixed. <a href="http://bugs.jquery.com/ticket/5575">#5575</a></li>
	<li>We've fixed an issue where adding extra methods to Array.prototype and using jQuery.clone(true) to clone an element resulted in invalid event bindings. <a href="http://bugs.jquery.com/ticket/6355">#6355</a></li>
	<li>Fixed an issue where the nth-child does not handle whitespace correctly in Internet Explorer. <a href="http://bugs.jquery.com/ticket/7558">#7558</a></li>
	<li>We corrected a bug where mouseenter/leave behaved like mouseover/out when using live events <a href="http://bugs.jquery.com/ticket/5821">#5821</a></li>
	<li>Subclassing in jQuery now supported <a href="http://bugs.jquery.com/ticket/7901">#7901</a></li>
	<li>Fixed a regression in 1.4.3 where the eq() selector was no longer working with previous and adjacent selectors <a href="http://bugs.jquery.com/ticket/7906">#7906</a></li>
	<li>Updated the documentation on event.currentTarget to address any confusion regarding jQuery.proxy. <a href="http://bugs.jquery.com/ticket/7628">#7628</a></li>
	<li>Fixed an issue where xhr.setRequestHeader('Accept',...) appended the value rather than replacing it. <a href="http://bugs.jquery.com/ticket/6230">#6230</a></li>
	<li>An IE issue where ajax methods failed for content types ending in '+xml' (eg. rss+xml) was fixed. <a href="http://bugs.jquery.com/ticket/4958">#4958</a></li>
	<li>The updates to ajax now allow any request to be aborted. <a href="http://bugs.jquery.com/ticket/3442">#3442</a></li>
	<li>A .slideUp() issue in FireFox 3.6.11 was fixed which previously hid the frameset border and legend but left any content uncovered by another element. <a href="http://bugs.jquery.com/ticket/7308">#7308</a></li>
	<li>We now support cross-browser XML parsing. <a href="http://bugs.jquery.com/ticket/6693">#6693</a></li>
	<li>Fixed a bug where when using dataType:'json' in the .ajax() method, the data object was undefined in IE6 and 7. <a href="http://bugs.jquery.com/ticket/6106">#6106</a></li>
	<li>Corrected an issue where JSONP calls were not removing the script tag when the call completed. <a href="http://bugs.jquery.com/ticket/7418">#7418</a></li>
	<li>Updated the documentation to reflect the behaviour supported when using delay() with show() if the duration is not specified. <a href="http://bugs.jquery.com/ticket/7543">#7543</a></li>
</ul>