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Prefer:
- documentation updates aligned with real code changes and current compatibility ranges
- concise, actionable release notes
- updating CHANGELOG and UPGRADING together for notable user-facing changes
- preserving existing document structure and tone
- keeping examples consistent with actual defaults and routes in this bundle
- **English** for all public docs (`docs/`, `README.md`, `specs/`, Flex recipe texts)

Do not invent features, versions, or commands that are not present in the repository.
Do not remove past release history unless explicitly requested.
Do not author integrator-facing documentation in Spanish (or other languages) unless explicitly requested.