React is a JavaScript library for building user interfaces.

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React Server Components (or RSC) is a new application architecture designed by the React team.

































We’ve first shared our research on RSC in an introductory talk and an RFC.

































To recap them, we are introducing a new kind of component—Server Components—that run ahead of time and are excluded from your JavaScript bundle.

































Server Components can run during the build, letting you read from the filesystem or fetch static content.













Since our last update, we have merged the React Server Components RFC to ratify the proposal.