Simon Willison’s Weblog

22nd January 2008 - Link Blog

The versioning switch is not a browser detect. PPK: “In other words, the versioning switch does not have any of the negative effects of a browser detect.”

Posted 22nd January 2008 at 4:34 pm

Recent articles

DeepSeek V4 - almost on the frontier, a fraction of the price - 24th April 2026
Extract PDF text in your browser with LiteParse for the web - 23rd April 2026
A pelican for GPT-5.5 via the semi-official Codex backdoor API - 23rd April 2026

This is a link post by Simon Willison, posted on 22nd January 2008.

browserdetect 1 browsers 103 doctypeswitching 2 ie8 25 internet-explorer 74 ppk 6 web-standards 49 xuacompatible 10

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