migrating-code
Migrating Code
Core Principles
- Never break production - Backward compatible until fully rolled out
- Small, reversible steps - Each step independently deployable
- Test at every stage - Before, during, and after
- Have rollback ready - Always
Migration Checklist
- [ ] Pre-Migration: Read changelog, identify breaking changes, ensure test coverage
- [ ] During: Small steps, test each, monitor errors, rollback ready
- [ ] Post: Verify tests, check metrics, remove scaffolding, update docs
Database Schema
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