What’s new in React 19

What this post added

This post introduces React 19 and its key features: Server Components, new directives ('use client', 'use server'), Actions (including Server Actions), and new hooks (`useActionState`, `useFormStatus`). It explains how Server Components improve performance by rendering on the server, reducing JavaScript bundles, and enabling data fetching before rendering. The post also details the role of directives in managing client-side vs. server-side code and demonstrates how Actions simplify form submissions and asynchronous operations. The integration of these features with Vercel's platform for deploying React applications is implied.