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

Running Python code in a sandbox with MicroPython and WASM - 6th June 2026
Claude Opus 4.8: "a modest but tangible improvement" - 28th May 2026
I think Anthropic and OpenAI have found product-market fit - 27th May 2026

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

css 237 javascript 757 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