React 19 introduces Server Actions, a new Compiler, and progressive form enhancements.
With React 19, the code became cleaner, faster, and more enjoyable to work with.
Key changes in React 19 include Server Actions for API calls without boilerplate, a React Compiler for automatic memoization, and enhanced form handling.
React 19 optimizes app performance, simplifies code structure, and enhances developer experience in frontend development.