Simon Willison’s Weblog

FAQs about the future of XHTML. The XHTML 2 Working Group charter will not be renewed after 2009—as far as the W3C are concerned, XHTML5 is the future of XHTML.

Posted 3rd July 2009 at 1:37 am

Recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

w3c 22 web-standards 47 xhtml 52 xhtml2 6 xhtml5 2

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