Simon Willison’s Weblog

5th December 2007 - Link Blog

YUI 2.4.0 released. Lots of great new features, but the one I’m most excited about is Selector: YUI finally has a CSS query engine.

Posted 5th December 2007 at 3:32 pm

Recent articles

Thoughts on OpenAI acquiring Astral and uv/ruff/ty - 19th March 2026
GPT-5.4 mini and GPT-5.4 nano, which can describe 76,000 photos for $52 - 17th March 2026
My fireside chat about agentic engineering at the Pragmatic Summit - 14th March 2026

This is a link post by Simon Willison, posted on 5th December 2007.

css 233 javascript 745 libraries 23 selector 1 yahoo 107 yui 33

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe