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Anthropic reveals system prompt changes between Claude Opus versions
Anthropic publishes updated system prompts for Claude Opus, with a community diff revealing changes between versions 4.6 and 4.7.
Since Anthropic publish their system prompts we can generate a diff between Claude Opus 4.6 and 4.7 - here are my notes on what's changed simonwillison.net/2026/Apr/18/...
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