Welcome to YUI Weekly, the weekly roundup of news and announcements from the YUI team and community. If you have any interesting demos or links you’d like to share, leave a comment below.

• This week saw the release of YUI 3.9.0pr3, our last scheduled preview release before next week's 3.9.0 GA release. This release includes the addition of Y.Tree, Normalize.css, A+ Compatible Promises, Graphics Chaining, and more! See this blog post for a recap of everything that has changed since 3.9.0pr2.

• Added to the YUI Theater this week was YUI Open RoundTable 02/21/2013, where we discussed performance benchmarking with yui-bench, YUI CSS, YUI Web Font, and as well as the typical house-cleaning with bugs and pull requests.

• yui-contrib discussions:

  • Can/should something be done about URL lengths?
  • Custom Icon font for YUI
  • Contributing.md - take a look?
  • Benchmarking

• Version bump for yuidoc. Upgrade with npm install -g yuidocjs.

• New and updated Gallery modules include busy, itsadialogbox, slidecheckbox, textarea-expander, twitter-widget, and zui-rascroll.

• Reads of the Week (thanks to JavaScript Weekly)

  • asm.js: A Low Level, Highly Optimizable Subset of JavaScript for Compilers
  • Two ways to set a conditional breakpoint in JavaScript
  • Functions Explained
  • ... and more