7 - Massive speed-ups (4x-10x) in the selector engine
8 - Fixed synchronous requests
9 - $.get, $.getIfModified, $.post, $.getScript and $.getJSON now all pass through the XMLHttpRequest as returned by $.ajax
10 - Improved AJAX docs (eg. more examples for $.ajax
11 - Improved event fixingFixed event fixing (Opera provides event.srcElement, must ignore it if target is available; only create pageX if clientX is available)
12 - Fixed ID with context selectors (eg. div #id doesn't ignore "div" anymore)
13 - Fixed nth-child selectors to start on the right number
14 - Improved jQuery.merge to avoid unnecessary loops
15 - Fixed docs for html(): Now mentions that is not available for XML documents
16 - Improved docs for blur() and focus(), mentioning the difference between calling the jQuery method and the DOM method
17 - Implemented a better error handling for ajax requests. Exceptions caused by dropping connections are now handled, too.
18 - Added global settings for AJAX (in addition to timeout), use $.ajaxSetup() to modify them
19 - You can now unbind event handlers from within themselves
25 - Extensions to $.ajax: $.ajax accepts additonal options: beforeSend, async and processData; returns XMLHttpRequest to allow manual aborting of requests, see docs for details
26 - AJAX module: the public $.ajax API is now used internally (for $.get/$.post etc.); loading scripts works now much more reliable on all browers except Safari
27 - New global ajax handler: ajaxSend - called before an ajax request is sent
28 - Extensions to global ajax handlers: ajaxSend, ajaxSuccess, ajaxError and ajaxComplete get XMLHttpRequest and settings passed as arguments
29 - Extensions to event handling: pageX and pageY are available x-browser (IE does not provide native pageX/Y)
30 - Improved docs: $(String) method has now two seperate descriptions, one for selecting elements, one for creating (html on-the-fly)
31 - FX module: Most inline stlyes added by animations are now removed when the animation is complete, eg. height style when animating height (exception: display styles)
32 - Added note to attr(String, Object) about issues with setting the name property on input elements
33 - Seperated internal stuff from get() into set()
34 - Merged the two API examples for each() into one more precise example
35 - Improved docs for $.browser and added docs for $.boxModel
36 - Docs for the jQuery constructor $() were improved: There is now $(String expression[, Object context]) and $(String html)