React Server Components (RSCs) are a new feature in React that allows for data-fetching and remote client-server communication within the framework, augmenting its fundamental capabilities. RSCs were created to solve issues with traditional client-side rendering, such as difficulty scaling monolithic applications due to cross-team dependencies and high traffic demands. They individually fetch data and render entirely on the server, streaming the resulting HTML into the client-side React component tree, interleaving with other Server and Client Components as necessary. This process eliminates the need for client-side re-rendering, improving performance. RSCs can help reduce the size of the client-side JavaScript bundle and improve loading performance by resolving all dependencies on the server and rendering out code only on the server. They are fully interleaved with client-side code, allowing for smart data caching, multiple fetches in a single roundtrip, and automatic request deduping. RSCs also provide a seamless Remote Procedure Call (RPC) experience between the client and the server through Server Actions, enabling progressive enhancement and eliminating development work on APIs. Next.js is the first framework to integrate the entire React architecture for Server Components, Server Actions, Suspense, Transitions, and all else that has changed with the release of RSCs, making it easy for developers to take advantage of these new features.