claude-prompting-best-practices changedbuild-with-claude/prompt-engineering/claude-prompting-best-practices
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10851085### Migrating to Claude Sonnet 5 from Claude Sonnet 4.5 or earlier
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1087See [Migrating to Claude Sonnet 5 from Claude Sonnet 4.5 or earlier](https://platform.claude.com/docs/en/about-claude/models/migration-guide#migrating-from-sonnet-45) in the migration guide, which covers the effort default change and the removal of manual extended thinking (`budget_tokens`).
1087See [Migrating to Claude Sonnet 5 from Claude Sonnet 4.5 or earlier](https://platform.claude.com/docs/en/models/sonnet-5/migration-guide#migrating-from-sonnet-45) in the migration guide, which covers the effort default change and the removal of manual extended thinking (`budget_tokens`).
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10891089## Next steps
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