Redux remains a strong choice for complex React applications in 2025 due to its core principles of predictability, observability, scalability, and architectural clarity. While new state management tools like Signals offer modern approaches to reactivity, they often sacrifice predictability and transparency, making Redux's explicit data flow and action-based update system still appealing for large applications.

The article explains how to achieve fine-grained reactivity in React using a minimalist approach that requires fewer than 35 lines of code. It discusses the challenges of unnecessary re-renders in components and provides solutions for targeted updates using a custom store and selectors for optimal performance.