Prompt Versioning Changelog Prompt

Old prompt version: {{old_version}}
New prompt version: {{new_version}}
Diff:
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Write a changelog entry: what changed, why (the failure it fixes or behaviour it adds), the eval delta if known, and the rollback condition — the signal that would tell you to revert this version.

Replace the {{fields}} with your own context and tighten the rules to match your domain.