Simon Willison’s Weblog

29th October 2007 - Link Blog

Mac OS X 10.5 Leopard: the Ars Technica review. John Siracusa’s 17 page review of Leopard, covering everything from UI tweaks to DTrace sample code. Smart use of embedded video and audio too—I suggest setting aside at least an hour to work through it all.

Posted 29th October 2007 at 8:55 am

Recent articles

Anthropic's Project Glasswing - restricting Claude Mythos to security researchers - sounds necessary to me - 7th April 2026
The Axios supply chain attack used individually targeted social engineering - 3rd April 2026
Highlights from my conversation about agentic engineering on Lenny's Podcast - 2nd April 2026

This is a link post by Simon Willison, posted on 29th October 2007.

apple 129 arstechnica 8 dtrace 2 john-siracusa 3 leopard 14 macos 106

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