John Resig and his team had rolled out new version of jQuery, on birthday of jQuery.Today jQuery becomes 3 year old and got a new present .. new selector engine named Sizzle.

Along with sizzle, jQuery v1.3 includes many new features :

• Live Events: Event delegation with a jQuery twist
• jQuery Event Overhaul: Completely rewired to simplify event handling.
• HTML Injection Rewrite: Lightning-fast HTML appending.
• Offset Rewrite: Super-quick position calculation.

More details can be found on release notes.

This is great news for jQuery developers like me, Happy Birthday jQuery