Modern React Patterns: Concurrent Rendering, Actions & What's Next

Handling async operations in UI components can be tricky—flickering pending states, inefficient state updates, and unstable interfaces are common issues. Modern React patterns address these challenges through concurrent rendering and React 19 Actions, offering more predictable async workflows and reusable patterns.In the context of the Next.js App Router, this session will demonstrate how React Server Components streamline data fetching while Actions handle async operations with built-in optimistic updates and pending states. Looking ahead, we'll explore how View Transitions will integrate with these patterns to enable fluid visual updates. You'll leave with practical strategies for building reusable components while ensuring a smooth, reliable user experience.