Sync with react.dev @ f9e2c139

next.config.js

@@ -36,6 +36,14 @@ const nextConfig = {
     // Don't bundle the shim unnecessarily.
     config.resolve.alias['use-sync-external-store/shim'] = 'react';
 
+    // ESLint depends on the CommonJS version of esquery,
+    // but Webpack loads the ESM version by default. This
+    // alias ensures the correct version is used.
+    //
+    // More info:
+    // https://github.com/reactjs/react.dev/pull/8115
+    config.resolve.alias['esquery'] = 'esquery/dist/esquery.min.js';
+
     const {IgnorePlugin, NormalModuleReplacementPlugin} = require('webpack');
     config.plugins.push(
       new NormalModuleReplacementPlugin(

src/components/MDX/Sandpack/runESLint.tsx

@@ -21,13 +21,6 @@ const getCodeMirrorPosition = (
 
 const linter = new Linter();
 
-// HACK! Eslint requires 'esquery' using `require`, but there's no commonjs interop.
-// because of this it tries to run `esquery.parse()`, while there's only `esquery.default.parse()`.
-// This hack places the functions in the right place.
-const esquery = require('esquery');
-esquery.parse = esquery.default?.parse;
-esquery.matches = esquery.default?.matches;
-
 const reactRules = require('eslint-plugin-react-hooks').rules;
 linter.defineRules({
   'react-hooks/rules-of-hooks': reactRules['rules-of-hooks'],

src/content/reference/react/Component.md

@@ -1271,6 +1271,16 @@ button { margin-left: 10px; }
 
 기본적으로 애플리케이션이 렌더링 도중 에러를 발생시키면 React는 화면에서 해당 UI를 제거합니다. 이를 방지하기 위해 UI의 일부를 *Error Boundary*로 감싸면 됩니다. Error Boundary는 에러가 발생한 부분 대신 오류 메시지와 같은 Fallback UI를 표시할 수 있는 특수 컴포넌트입니다.
 
+<Note>
+Error boundaries do not catch errors for:
+
+- Event handlers [(learn more)](/learn/responding-to-events)
+- [Server side rendering](/reference/react-dom/server) 
+- Errors thrown in the error boundary itself (rather than its children)
+- Asynchronous code (e.g. `setTimeout` or `requestAnimationFrame` callbacks); an exception is the usage of the [`startTransition`](/reference/react/useTransition#starttransition) function returned by the [`useTransition`](/reference/react/useTransition) Hook. Errors thrown inside the transition function are caught by error boundaries [(learn more)](/reference/react/useTransition#displaying-an-error-to-users-with-error-boundary)
+
+</Note>
+
 Error Boundary 컴포넌트를 구현하려면 오류에 대한 응답으로 State를 업데이트하고 사용자에게 오류 메시지를 표시할 수 있는 [`static getDerivedStateFromError`](#static-getderivedstatefromerror)를 제공해야 합니다. 또한 선택적으로 [`componentDidCatch`](#componentdidcatch)를 구현하여 분석 서비스에 오류를 기록하는 등의 추가 로직을 추가할 수도 있습니다.
 
 With [`captureOwnerStack`](/reference/react/captureOwnerStack) you can include the Owner Stack during development.

src/sidebarBlog.json

@@ -53,6 +53,13 @@
           "date": "October 7, 2025",
           "path": "/blog/2025/10/07/introducing-the-react-foundation"
         },
+        {
+          "title": "React 19.2",
+          "titleForHomepage": "React 19.2",
+          "icon": "blog",
+          "date": "October 1, 2025",
+          "path": "/blog/2025/10/01/react-19-2"
+        },
         {
           "title": "React Labs: View Transitions, Activity, and more",
           "titleForHomepage": "View Transitions and Activity",