just in case this is useful for us:
http://javascriptly.com/2008/08/yui-30-changes-from-the-root/
"
5 goals:
• Lighter (less K-weight on the wire and on the page for most uses)
• faster (fewer http requests, less code to write and compile, more
efficient code)
• more consistent (common naming, event signatures, and widget APIs
throughout the library)
• more powerful (do more with less implementation code)
• more securable (safer and easier to expose to multiple developers
working in the same environment; easier to run under systems likeCaja
or ADsafe)
[...]
So, what’s new in YUI 3.0? Many things, both large and small like:
• Intelligent loading. YUI detect which modules it needs to load, and
then download them from a server — it will also join the modules’
JavaScript source files together, in order to optimize download time.
• Change to a “YUI” namespace instead of “Yahoo” namespace in YUI 2.x
branches.
• Combine DOM events with custom events, making it possible to work
with all events in a unified way.
• Borrow “selectors” idea from JQuery to allow finding and working
with nodes on an individual and group basis.
• Chaining - another JQuery’s idea that makes it possible to write
more compressed chaining syntax in implementation code.
"
Thanks
-Vincent