React Compiler Runtime

react-compiler-runtime is a foundational library that provides the necessary primitives and infrastructure for the experimental React Compiler to operate effectively at runtime. It underpins the compiler's ability to automatically memoize components and hooks, thereby optimizing rendering performance without manual `useMemo` or `useCallback` declarations. The package itself is largely internal, meant to be consumed by the compiled output of the React Compiler rather than directly imported by application developers. As of version 1.0.0, its release cadence is tightly coupled with the development and release cycles of the broader React ecosystem, particularly the React Compiler and React core library (currently React 19 is under active development). Its key differentiator is enabling a future where React applications achieve optimal performance with significantly reduced boilerplate, shifting the responsibility of memoization from the developer to the build toolchain.