### Summary The `useOptimistic` hook is listed in the left navigation menu but is missing from the [Built-in React Hooks](https://react.dev/reference/react/hooks) overview page, leaving the page incomplete with only 17 of the 18 hooks documented. ### Page https://react.dev/reference/react/hooks ### Details ### Description The left navigation menu under **Hooks** lists 18 hooks, but the [Built-in React Hooks](https://react.dev/reference/react/hooks) overview page only documents 17 of them. `useOptimistic` is present in the sidebar but not mentioned anywhere on the overview page. ### Steps to reproduce 1. Open https://react.dev/reference/react/hooks 2. Count the hooks documented on the page 3. Compare with the hooks listed in the left navigation menu under **Hooks** ### Expected `useOptimistic` should be listed in the **State Hooks** section of the overview page, alongside `useState` and `useReducer`, since it lets you show a different state while an async action is pending. ### Actual `useOptimistic` is missing from the overview page entirely. ### Suggested fix Add `useOptimistic` to the **State Hooks** section in `src/content/reference/react/hooks.md`: - [`useOptimistic`](/reference/react/useOptimistic) lets you show a different state while an async action is pending. ### Screen Capture <img width="1109" height="822" alt="Image" src="https://github.com/user-attachments/assets/b16430ae-f3ca-44cd-b03d-f9118e2c5676" /> ### Additional Context: The overview page is often the first place developers look when exploring React's built-in hooks. Having `useOptimistic` absent from this page means: - Developers new to React may not discover it exists at all, since the overview page is designed to be the exhaustive entry point for all built-in hooks. - It creates an inconsistency between the sidebar navigation and the page content - `useOptimistic` is particularly relevant in modern React apps that use Server Actions and async transitions — a growing pattern — so its visibility on the overview page is especially valuable for developers adopting these features.