jQuery 1.3 introduced new CSS selector engine, live events, jQuery event object, HTML injection rewrite and removed browser sniffing
jQuery 1.3 was released on January 14th, 2009. The main features introduced with this version are:
- New CSS selector engine – nicknamed Sizzle.
- Live Events: jQuery now supports “live events” – events that can be bound to all current – and future – elements.
- jQuery Event Object: this object completely encapsulates all of the functionality normally found in a W3C-compliant event object implementation and makes it work smoothly across all browsers.
- HTML Injection Rewrite: all of the code related to injecting HTML into a document (such as the append, prepend, before, and after methods) has been overhauled.
- No More Browser Sniffing: jQuery no longer uses any form of browser/userAgent sniffing internally. Instead a technique called feature detection is used where a particular browser feature or bug is simulated to verify its existence.
Resources