jQuery 1.6.3 Released

jQuery 1.6.3 is now out! This is the third minor release on top of jQuery 1.6 and lands a number of fixes for bugs, as listed below.
As usual, we provide two copies of jQuery, one minified and one uncompressed (for debugging or reading).

You can help us by dropping that code into your existing application and letting us know if anything no longer works. Please file a bug and be sure to mention that you’re testing against jQuery 1.6.3.
Many thanks to all the people who reported bugs, submitted patches, and otherwise helped with this release! We want to encourage everyone from the community to get involved in contributing back to jQuery core. We’ve set up a full page of information dedicated towards becoming more involved with the team. The team is here and ready to help you help us!
Highlights
Fix an XSS attack vector: User ma.la reported a common pattern that many sites are using to select elements using location.hash that allows someone to inject script into the page. This practice seemed widespread enough that we decided to modify the selector recognition to prevent script injection for the most common case. Any string passed to $() cannot contain HTML tags (and thus no script) if it has a “#” character preceding them. See the ticket linked above for more information and a test case.
No more animation “worm holes”: We had high hopes for the browser’s requestAnimationFrame API when we added support into version 1.6. However, one of the highest-volume complaints we’ve received since then relates to the way requestAnimationFrame acts when a tab is not visible. All the animations initiated when the tab is invisible “stack” and are not executed until the tab is brought back into focus. Then they all animate at warp speed! We’ve removed support for this API (which has no impact on the way you call jQuery’s animation features) and plan to incorporate it into a future version of jQuery.
Better handling of HTML5 data attribute names: The $().data() API serves double-duty, handling data for the internal use of jQuery and plugins in addition to reading initial values of HTML5 data- attributes. We’ve improved the ability to use HTML5 conventions such as converting camel-case to camelCase when needed. Remember, however, that the $().data() API only reads the HTML5 data- attributes initially, and does not keep subsequent data changes in sync with attributes for performance reasons. To update the actual attributes in the HTML markup, use .attr().
jQuery 1.6.3 Change Log
The change log of the 1.6.3 release:
Ajax

  • #9255: jQuery.parseXML error handling does not work in webkit browsers
  • #9854: Pass statusText through instead of “normalizing” it
  • #9887: jQuery.ajaxSetup may cause unnecessary memory usage
  • #9970: Typo in ajax.js: status should be jqXHR.status?
  • #10098: Encode comment-like Accept headers to avoid mobile carrier mangling

Attributes

  • #9630: foo.contents().hasClass() returns incorrect value
  • #9699: removeAttr(‘style’) does not consistently remove the style attribute in webkit
  • #9719: removeAttr(‘disabled’) doesn’t change input’s color on IE6
  • #9979: .prop(‘tabIndex’) returns inconsistent results for elements that have not yet set tabIndex
  • #9980: Simplify the attr code by using getAttributeNode for everything in IE6/7

Build

  • #9988: Minimal License Header in compressed jQuery

Core

  • #9521: XSS with $(location.hash) and $(#) is needed?
  • #9897: try-catch isPlainObject detection
  • #10076: $.inArray crashes IE6 and Chrome if second argument is `null` or `undefined`

CSS

  • #6652: Remove filter:alpha(opacity=100) after animation
  • #9572: Support -ms-transform in .css() method
  • #10021: Can’t add negative numbers using the relative-value syntax with .css() and .animate()

Data

  • #8235: jQuery.data throws a script error in certain circumstances
  • #9318: HTML5 data attributes has strange behaviour with if attribute names contain numbers
  • #9413: $.fn.removeData does not remove data with a dash in a name
  • #9779: Allow non-null|undefined evaluation of data property values
  • #9794: jQuery.fn.data() correctly handle access to arbitrary data property values
  • #10016: Cannot retrieve “false-y” values under key names with dashes using jQuery.data method
  • #10080: unload from frame’s window breaks in IE8

Dimensions

  • #10123: .width() can return a float in Firefox 6

Effects

  • #9381: Animations halt when the browser is out of focus due to requestAnimationFrame
  • #9678: setInterval cleared by animation

Event

  • #7071: Accessing the ‘type’ property on VML elements fails on IE during submit special handler

Manipulation

  • #9587: Cloning a div with an object causes error in IE8

Support

  • #9634: Visible “t” character in upper left corner during support.js init
  • #9823: IE 8 crashes when using background-image on BODY in css
  • #9964: test/support.js module strictEqual typo
  • #10029: $.support.scriptEval removed, but still included in documentation

Please do file a bug report with a test case as soon as possible if you find problems, as described above. Blog comments or Twitter aren’t helpful bug reports!

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