# Event Design

Event versioning and schema evolution.

## Best Practices

### ✅ DO

- Use past tense names (OrderPlaced)
- Include event version
- Make events immutable
- Include correlation IDs
- Document event schema

### ❌ DON'T

- Don't change event structure
- Don't delete old events
- Don't use present tense
- Don't skip versioning

## See Also

- [Best Practices Overview](README.md)
- [Events Documentation](../event-streaming/fundamentals/events-and-workflows.md)