Bun 1.2 in Production: What Actually Broke When We Migrated from Node

📰 Dev.to · Atlas Whoff

Learn from the challenges of migrating from Node to Bun 1.2 in production and how to overcome them

intermediate Published 21 Apr 2026
Action Steps
  1. Assess your current Node.js application and identify potential areas of compatibility issues with Bun 1.2
  2. Configure Bun 1.2 to work with your existing application, using tools like bun install and bun run
  3. Test your application thoroughly to identify and fix breaking changes
  4. Optimize your application for Bun 1.2, using features like built-in support for ES modules
  5. Monitor your application's performance and troubleshoot any issues that arise after migration
Who Needs to Know This

Developers and DevOps teams can benefit from understanding the potential pitfalls of migrating to Bun 1.2, and how to troubleshoot and resolve issues that arise during the migration process

Key Insight

💡 Migrating to Bun 1.2 requires careful planning, testing, and optimization to ensure a smooth transition

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💡 Migrating from Node to Bun 1.2? Learn from our experience and avoid common pitfalls #BunJS #NodeJS
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