Make the tabIndex hook first a propHook and add it to attrHooks for back-compat reasons. Fixes #9979.

Quick improvement to the performance of .index() with no arguments

CSS: Remove filter from style when setting opacity to 1 - Fixes #6652 - R

jQuery.clone() check destination child nodes are not null. Fixes #9587

Correct non-null|undefined evaluation of data property values. Fixes #9779

input type=datetime-local (ajax doesn't support it, yet)

ticket #7071 - Accessing the 'type' property on VML elements fails on IE during submit special handler

Check body existence before referencing its properties (fixes Nokia error)

Unit tests assert that .contents().hasClass() works as expected. Fixes #9630

Begrudgingly adds chrome detection to jQuery.browser (1.7). Fixes #9385

Builds minimal license header block for jquery.min.js

Non-breaking-space should achieve the same effect as a visible character. Fixes #9634

Removes empty, duplicate named test block. Fixes #9914

Renames duplicate named test block. Fixes #9912

Removes duplicate test block. Fixes #9913

More Details:
 - https://github.com/jquery/jquery/pull/453
 - http://bugs.jquery.com/ticket/9964

Make sure body is defined before attempting to use its properties. This check prevents an error from occurring when the width() or height() methods are called before the body is defined in browsers that return false on the first condition and proceed on to the second. For example, simply calling $( window ).width() from a script in the HEAD will throw an error in Nokia webkit browsers without this check in place.

Fixes #9255: xml parsing error in $.parseXML is now properly detected for all browsers. Unit test added.

Fixes #9854: propagates native statusText onto jqXHR.statusText. statusText in callbacks is still normalized. Unit test added.

Makes sure that status -1 (used when an internal error occured) will not tag jqXHR.readyState as complete (4).

Fixes #9887: ajax now supports circular references into objects passed as context. Prefilter and transport developpers should add their own custom option into flatOptions when needed. Unit test added.

Make sure that Internet Explorer 6-8 won't give a "failed" error, when a request for type is made on vml objects

More Details:
 - https://github.com/jquery/jquery/pull/433
 - http://bugs.jquery.com/ticket/9555

Fixes #9682. Removes data from the options for request with no content so that it is not used again in case of a retry. Unit test added.

Fixes #9446. Context is properly propagated using pipe. If context was the original deferred, then context is updated to next deferred in the chain. Unit tests added.