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CurrenciCombo/docs/MIGRATION_V1_V2.md

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# API Migration Guide: v1 → v2
## Overview
This guide helps migrate from API v1 to v2.
## Breaking Changes
### Plans Endpoint
**v1**: `POST /api/plans`
**v2**: `POST /api/v2/plans`
**Changes**:
- Response format updated
- Additional validation fields
- New error codes
### Execution Endpoint
**v1**: `POST /api/plans/:planId/execute`
**v2**: `POST /api/v2/plans/:planId/execute`
**Changes**:
- Execution response includes additional metadata
- Webhook events structure updated
## Migration Steps
1. Update base URL to use `/api/v2` prefix
2. Update error handling for new error codes
3. Update response parsing for new formats
4. Test thoroughly in staging environment
## Timeline
- **v1 Deprecation**: 2025-07-01
- **v1 Sunset**: 2025-12-31
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**Last Updated**: 2025-01-15