Simon Willison’s Weblog

28th May 2009 - Link Blog

Changes in Opera's user agent string format (via) How depressing... Opera 10 will ship with 9.80 in the User-Agent string because badly written browser sniffing scripts can’t cope with double digits.

Posted 28th May 2009 at 1:16 am

Recent articles

Claude Opus 4.8: "a modest but tangible improvement" - 28th May 2026
I think Anthropic and OpenAI have found product-market fit - 27th May 2026
Notes on Pope Leo XIV's encyclical on AI - 25th May 2026

This is a link post by Simon Willison, posted on 28th May 2009.

browsers 103 browsersniffing 2 opera 32 user-agents 8

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