Simon Willison’s Weblog

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

OpenAI's new open weight (Apache 2) models are really good - 5th August 2025
ChatGPT agent's user-agent - 4th August 2025
The ChatGPT sharing dialog demonstrates how difficult it is to design privacy preferences - 3rd August 2025

browserdetect 1 browsers 85 doctypeswitching 2 ie8 25 internet-explorer 25 ppk 6 web-standards 45 xuacompatible 10

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