jQuery 2.0 arrived in April with the same API as 1.9 and the IE6–8 compatibility code deleted. The 1.x branch continues in parallel — 1.10 shipped the same…
.on() replaced .bind(), .live() and .delegate() with one method, and the difference between them survives as a single optional argument in the middle. With a selector the handler…
jQuery 1.9 shipped in January and removed a set of methods that had been deprecated for years but were still everywhere: $.browser, .live(), .die(), the two-function form of…
.data() reads a data- attribute the first time it is asked and then caches the value in jQuery’s own store, keyed off an expando property on the element.…
Sizzle hands a selector to querySelectorAll whenever the browser has it, and IE8 does — for CSS 2.1 selectors only. Anything from CSS3 or invented by jQuery makes…