React Server Components have evolved significantly, and as we move into 2026, they're becoming the standard for building performant React applications. I've spent considerable time exploring their capabilities and limitations. Here's what I've learned about making them work effectively.

The Server Components mindset

Server Components fundamentally change how you think about React applications. Instead of sending everything to the client, you keep as much as possible on the server. This reduces bundle sizes and improves initial page loads dramatically.

Key principles for 2026:

1. Server-first approach - Default to Server Components
2. Client boundaries - Use sparingly and strategically
3. Data fetching patterns - Colocate data with components
4. Progressive enhancement - Start server-rendered, add interactivity

Performance patterns

The biggest wins come from understanding how Server Components interact with your data layer. Direct database queries in Server Components eliminate API round trips and reduce complexity.

Composition strategies

Server and Client Components have different composition rules. Understanding these boundaries is crucial for building maintainable applications.