Upgrade to TypeScript 5.4 for better type safety.
Step-by-step guide to migrating your projects.
New Features
✅ Improved narrowing
✅ NoInfer utility type
✅ Object.groupBy/map.groupBy
Migration Steps
npm install typescript@5.4 –save-dev
npx tsc –init
npx tsc –noEmit
Common Issues
• Update strict mode gradually
• Fix type errors incrementally
• Update declaration files
Conclusion
TypeScript 5.4 provides better type inference!