Made it so that you can't change the type of an input element, having it throw an exception instead (except for input elements that haven't yet been injected into the DOM). (Bug #1536)

Removed all deprecated functionality for jQuery 1.2. A full list of what was removed can be found here: http://jquery.com/blog/2007/08/24/jquery-114-faster-more-tests-ready-for-12/

Removed all inline documentation. The current version of all documentation is stored online, on the wiki: http://docs.jquery.com/

Example:
  $("#foo").slideDown(1000);
  setTimeout(function(){
    $("#foo").stop();
  }, 500);

- Cross Domain getScript
  $.getScript("http://foo.com/script.js");
- JSONP
  $.ajax({ url: "script.js", type: "jsonp" });
  $.getJSON("script.js?callback=?");
- Cross Domain JSONP/getJSON
  $.getJSON("http://foo.com/script.js?callback=?");
- No-cache Ajax Requests
  $.ajax({ url: "test.html", cache: false });

Added namespaced events to bind, unbind, and trigger. This allows you to deal with event handlers of a specific "class" (great for plugins).

Added support for .wrapInner() and .wrapAll() - and re-wrote .wrap() to use .wrapAll(). (Fixes bug #1296)

Added support for .contents(). Returns ALL child nodes for an element - except for on an IFrame, then it returns the IFrame's document. This fixes #1024.

Made it so that you can pass in an event object to the trigger data args and it'll override the custom event object (this way you can pass in the event object of a mousemove to a drag event trigger, for example).

Added a new extra fn arg to trigger (so you don't have to simulate the trigger yourself). (Bug #1467) Added a new .triggerHandler() method that allows you to NOT trigger native calls AND returns the response from the handlers. (Bug #873 & #1417)

Made it so that the last return value is always returned from handle() (unless one of the return values was false, in which case the return value is false). (Bug #1416)

Added new replaceWith() (replace all matched elements with the specified HTML/DOM Elements/Array/etc.) and replaceAll() (replace the specified elements with the set of matched elements).

Examples:
- $("#test").load("test.html #something");
- $("#test").load("test.html p.user");

Caveats:
- No scripts are injected when a selector is used.
- The selector is rooted inside the head and body - it's equivalent to doing:
  $("body,head").find(selector)

Marked all the appropriate methods as being deprecated for the 1.1.4 release (in preparation for 1.2).

Brought back a husk method to represent evalScripts. I didn't realize so many plugins relied on it (it's deprecated in this release).

Only bind .ready() once per instance of jQuery - and only bind if the ready() method is actually called (nothing is bound if window/load is used).

Made 'jQuery' unrollable via .noConflict(true) and instances of new Function() have been converted to eval(function(){}) in order to handle jQuery name changes. (Bug #1393)

Using some of the ideas presented by rformato, I've significantly sped up $("#id") selection. It's now just 10% slower than doing: $(document.getElementById("test")), which seems quite acceptable. (Bug #1316)

Fix for a selector speed regression (calling a simple selector many times resulted in a significant speed down). This has been fixed by breaking the RegExps out into the global scope. This required that a closure be implemented around the full jQuery script (which is now the case). Some simple changes were made in addition to the RegExp one, allowing for some greater flexibility on our part - and hopefully better compression.

Speed results:
http://dev.jquery.com/~john/ticket/1351/ vs.
http://dev.jquery.com/~john/ticket/1351/113.html vs.
http://dev.jquery.com/~john/ticket/1351/112.html

Two quick fixes in relation to #1028. ajaxSetup shouldn't be deep and the boolean arg should be used, not overwritten with 'true'.

Make deep .extend() an optional argument - it will go deep if you pass in an boolean as the first argument (fixed bug #1028).