Simon Willison’s Weblog

Yahoo! supporting OpenID 2.0 but not 1.1. Yahoo!’s Allen Tom outlines the reasons Yahoo! are supporting OpenID 2.0 but not OpenID 1.1.

Posted 19th January 2008 at 9:10 am

Recent articles

Highlights from my appearance on the Data Renegades podcast with CL Kao and Dori Wilson - 26th November 2025
Claude Opus 4.5, and why evaluating new LLMs is increasingly difficult - 24th November 2025
sqlite-utils 4.0a1 has several (minor) backwards incompatible changes - 24th November 2025

allen-tom 1 openid 213 openid2 7 yahoo 107

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