Merge pull request #527 from reactjs/sync-2c7798dc

Sync with react.dev @ 2c7798d

Author: neighborhood999

src/content/reference/react/components.md

@@ -16,6 +16,7 @@ React exposes a few built-in components that you can use in your JSX.
 * [`<Profiler>`](/reference/react/Profiler) lets you measure rendering performance of a React tree programmatically.
 * [`<Suspense>`](/reference/react/Suspense) lets you display a fallback while the child components are loading.
 * [`<StrictMode>`](/reference/react/StrictMode) enables extra development-only checks that help you find bugs early.
+* [`<Activity>`](/reference/react/Activity) lets you hide and restore the UI and internal state of its children.
 
 ---
 

src/sidebarBlog.json

@@ -22,7 +22,7 @@
           "title": "React Compiler v1.0",
           "titleForHomepage": "React Compiler v1.0",
           "icon": "blog",
-          "date": "October 8, 2025",
+          "date": "October 7, 2025",
           "path": "/blog/2025/10/07/react-compiler-1"
         },
         {