Use Node 24 and remove obsolete syntax examples

Author: aurorascharff

.github/workflows/analyze.yml

@@ -18,15 +18,15 @@ jobs:
       - name: Set up node
         uses: actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version: '24.x'
           cache: yarn
           cache-dependency-path: yarn.lock
 
       - name: Restore cached node_modules
         uses: actions/cache@v4
         with:
           path: '**/node_modules'
-          key: node_modules-${{ runner.arch }}-${{ runner.os }}-${{ hashFiles('yarn.lock') }}
+          key: node_modules-24-${{ runner.arch }}-${{ runner.os }}-${{ hashFiles('yarn.lock') }}
 
       - name: Install deps
         run: yarn install --frozen-lockfile

.github/workflows/site_lint.yml

@@ -13,22 +13,22 @@ jobs:
   lint:
     runs-on: ubuntu-latest
 
-    name: Lint on node 20.x and ubuntu-latest
+    name: Lint on node 24.x and ubuntu-latest
 
     steps:
       - uses: actions/checkout@v4
-      - name: Use Node.js 20.x
+      - name: Use Node.js 24.x
         uses: actions/setup-node@v4
         with:
-          node-version: 20.x
+          node-version: 24.x
           cache: yarn
           cache-dependency-path: yarn.lock
 
       - name: Restore cached node_modules
         uses: actions/cache@v4
         with:
           path: '**/node_modules'
-          key: node_modules-${{ runner.arch }}-${{ runner.os }}-${{ hashFiles('yarn.lock') }}
+          key: node_modules-24-${{ runner.arch }}-${{ runner.os }}-${{ hashFiles('yarn.lock') }}
 
       - name: Install deps
         run: yarn install --frozen-lockfile

CONTRIBUTING.md

@@ -42,37 +42,6 @@ Ignore this if you're specifically writing about ES5.
 
 Choose syntax that makes each example easier to follow. Prefer named `function` declarations over `const myFunction = () => ...` arrows for top-level functions. Use arrow functions when they make callbacks easier to read. In class components, arrow functions can also preserve the component's `this` value.
 
-#### Don't use features that aren't standardized yet.
-
-For example, **don't** write this:
-
-```js
-function Greeting({isLoggedIn}) {
-  return do {
-    if (isLoggedIn) {
-      <h1>Welcome back!</h1>;
-    } else {
-      <h1>Please sign in.</h1>;
-    }
-  };
-}
-```
-
-The [`do` expression syntax](https://github.com/tc39/proposal-do-expressions) is still experimental.
-
-Instead, **do** write this:
-
-```js
-function Greeting({isLoggedIn}) {
-  if (isLoggedIn) {
-    return <h1>Welcome back!</h1>;
-  }
-  return <h1>Please sign in.</h1>;
-}
-```
-
-Ignore this rule if you're specifically describing an experimental proposal. Make sure to mention its experimental nature in the code and in the surrounding text.
-
 ### Style
 
 - Use semicolons.

README.md

@@ -7,7 +7,7 @@ This repo contains the source code and documentation powering [react.dev](https:
 ### Prerequisites
 
 1. Git
-1. Node: v18.18.0 or greater
+1. Node: v24 or greater
 1. Yarn Classic: See [Yarn website for installation instructions](https://classic.yarnpkg.com/en/docs/install/)
 1. A fork of the repo (for any contributions)
 1. A clone of the [react.dev repo](https://github.com/reactjs/react.dev) on your local machine

package.json

@@ -111,7 +111,7 @@
     "webpack-bundle-analyzer": "^4.5.0"
   },
   "engines": {
-    "node": "^18.18.0 || ^19.8.0 || >=20.0.0"
+    "node": ">=24"
   },
   "nextBundleAnalysis": {
     "budget": null,