merging all conflicts

.eslintrc

@@ -2,11 +2,13 @@
   "root": true,
   "extends": "next/core-web-vitals",
   "parser": "@typescript-eslint/parser",
-  "plugins": ["@typescript-eslint"],
+  "plugins": ["@typescript-eslint", "eslint-plugin-react-compiler"],
   "rules": {
     "no-unused-vars": "off",
-    "@typescript-eslint/no-unused-vars": ["error", { "varsIgnorePattern": "^_" }],
-    "react-hooks/exhaustive-deps": "error"
+    "@typescript-eslint/no-unused-vars": ["error", {"varsIgnorePattern": "^_"}],
+    "react-hooks/exhaustive-deps": "error",
+    "react/no-unknown-property": ["error", {"ignore": ["meta"]}],
+    "react-compiler/react-compiler": "error"
   },
   "env": {
     "node": true,

.github/workflows/discord_notify.yml

@@ -0,0 +1,28 @@
+name: Discord Notify
+
+on:
+  pull_request_target:
+    types: [labeled]
+
+jobs:
+  check_maintainer:
+    uses: facebook/react/.github/workflows/shared_check_maintainer.yml@main
+    with:
+      actor: ${{ github.event.pull_request.user.login }}
+      is_remote: true
+
+  notify:
+    if: ${{ needs.check_maintainer.outputs.is_core_team == 'true' }}
+    needs: check_maintainer
+    runs-on: ubuntu-latest
+    steps:
+      - name: Discord Webhook Action
+        uses: tsickert/[email protected]
+        with:
+          webhook-url: ${{ secrets.DISCORD_WEBHOOK_URL }}
+          embed-author-name: ${{ github.event.pull_request.user.login }}
+          embed-author-url: ${{ github.event.pull_request.user.html_url }}
+          embed-author-icon-url: ${{ github.event.pull_request.user.avatar_url }}
+          embed-title: '#${{ github.event.number }} (+${{github.event.pull_request.additions}} -${{github.event.pull_request.deletions}}): ${{ github.event.pull_request.title }}'
+          embed-description: ${{ github.event.pull_request.body }}
+          embed-url: ${{ github.event.pull_request.html_url }}

.github/workflows/label_core_team_prs.yml

@@ -0,0 +1,32 @@
+name: Label Core Team PRs
+
+on:
+  pull_request_target:
+
+env:
+  TZ: /usr/share/zoneinfo/America/Los_Angeles
+  # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#cache-segment-restore-timeout
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1
+
+jobs:
+  check_maintainer:
+    uses: facebook/react/.github/workflows/shared_check_maintainer.yml@main
+    with:
+      actor: ${{ github.event.pull_request.user.login }}
+      is_remote: true
+
+  label:
+    if: ${{ needs.check_maintainer.outputs.is_core_team == 'true' }}
+    runs-on: ubuntu-latest
+    needs: check_maintainer
+    steps:
+      - name: Label PR as React Core Team
+        uses: actions/github-script@v7
+        with:
+          script: |
+            github.rest.issues.addLabels({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: ${{ github.event.number }},
+              labels: ['React Core Team']
+            });

README.md

@@ -7,7 +7,7 @@ This repo contains the source code and documentation powering [react.dev](https:
 ### Prerequisites
 
 1. Git
-1. Node: any 12.x version starting with v12.0.0 or greater
+1. Node: any version starting with v16.8.0 or greater
 1. Yarn: See [Yarn website for installation instructions](https://yarnpkg.com/lang/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

next-env.d.ts

@@ -2,4 +2,4 @@
 /// <reference types="next/image-types/global" />
 
 // NOTE: This file should not be edited
-// see https://nextjs.org/docs/basic-features/typescript for more information.
+// see https://nextjs.org/docs/pages/api-reference/config/typescript for more information.

next.config.js

@@ -9,10 +9,8 @@ const nextConfig = {
   pageExtensions: ['jsx', 'js', 'ts', 'tsx', 'mdx', 'md'],
   reactStrictMode: true,
   experimental: {
-    // TODO: Remove after https://github.com/vercel/next.js/issues/49355 is fixed
-    appDir: false,
     scrollRestoration: true,
-    legacyBrowsers: false,
+    reactCompiler: true,
   },
   env: {},
   webpack: (config, {dev, isServer, ...options}) => {

package.json

@@ -18,7 +18,7 @@
     "ci-check": "npm-run-all prettier:diff --parallel lint tsc lint-heading-ids rss",
     "tsc": "tsc --noEmit",
     "start": "next start",
-    "postinstall": "patch-package && (is-ci || husky install .husky)",
+    "postinstall": "is-ci || husky install .husky",
     "check-all": "npm-run-all prettier lint:fix tsc rss",
     "rss": "node scripts/generateRss.js"
   },
@@ -33,12 +33,12 @@
     "date-fns": "^2.16.1",
     "debounce": "^1.2.1",
     "github-slugger": "^1.3.0",
-    "next": "^13.4.1",
+    "next": "15.1.0",
     "next-remote-watch": "^1.0.0",
     "parse-numeric-range": "^1.2.0",
-    "react": "^0.0.0-experimental-16d053d59-20230506",
+    "react": "^19.0.0",
     "react-collapsed": "4.0.4",
-    "react-dom": "^0.0.0-experimental-16d053d59-20230506",
+    "react-dom": "^19.0.0",
     "remark-frontmatter": "^4.0.1",
     "remark-gfm": "^3.0.1"
   },
@@ -54,20 +54,22 @@
     "@types/mdx-js__react": "^1.5.2",
     "@types/node": "^14.6.4",
     "@types/parse-numeric-range": "^0.0.1",
-    "@types/react": "^18.0.9",
-    "@types/react-dom": "^18.0.5",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
     "@typescript-eslint/eslint-plugin": "^5.36.2",
     "@typescript-eslint/parser": "^5.36.2",
     "asyncro": "^3.0.0",
     "autoprefixer": "^10.4.2",
     "babel-eslint": "10.x",
+    "babel-plugin-react-compiler": "19.0.0-beta-e552027-20250112",
     "eslint": "7.x",
     "eslint-config-next": "12.0.3",
     "eslint-config-react-app": "^5.2.1",
     "eslint-plugin-flowtype": "4.x",
     "eslint-plugin-import": "2.x",
     "eslint-plugin-jsx-a11y": "6.x",
     "eslint-plugin-react": "7.x",
+    "eslint-plugin-react-compiler": "^19.0.0-beta-e552027-20250112",
     "eslint-plugin-react-hooks": "^0.0.0-experimental-fabef7a6b-20221215",
     "fs-extra": "^9.0.1",
     "globby": "^11.0.1",
@@ -78,7 +80,6 @@
     "mdast-util-to-string": "^1.1.0",
     "metro-cache": "0.72.2",
     "npm-run-all": "^4.1.5",
-    "patch-package": "^6.2.2",
     "postcss": "^8.4.5",
     "postcss-flexbugs-fixes": "4.2.1",
     "postcss-preset-env": "^6.7.0",
@@ -94,7 +95,7 @@
     "retext-smartypants": "^4.0.0",
     "rss": "^1.2.2",
     "tailwindcss": "^3.4.1",
-    "typescript": "^4.0.2",
+    "typescript": "^5.7.2",
     "unist-util-visit": "^2.0.3",
     "webpack-bundle-analyzer": "^4.5.0"
   },
@@ -109,5 +110,6 @@
   "lint-staged": {
     "*.{js,ts,jsx,tsx,css}": "yarn prettier",
     "src/**/*.md": "yarn fix-headings"
-  }
+  },
+  "packageManager": "[email protected]"
 }

src/components/ExternalLink.tsx

@@ -1,13 +1,17 @@
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
+import type {DetailedHTMLProps, AnchorHTMLAttributes} from 'react';
 
 export function ExternalLink({
   href,
   target,
   children,
   ...props
-}: JSX.IntrinsicElements['a']) {
+}: DetailedHTMLProps<
+  AnchorHTMLAttributes<HTMLAnchorElement>,
+  HTMLAnchorElement
+>) {
   return (
     <a href={href} target={target ?? '_blank'} rel="noopener" {...props}>
       {children}

src/components/Icon/IconArrow.tsx

@@ -4,9 +4,10 @@
 
 import {memo} from 'react';
 import cn from 'classnames';
+import type {SVGProps} from 'react';
 
 export const IconArrow = memo<
-  JSX.IntrinsicElements['svg'] & {
+  SVGProps<SVGSVGElement> & {
     /**
      * The direction the arrow should point.
      * `start` and `end` are relative to the current locale.

src/components/Icon/IconArrowSmall.tsx

@@ -4,9 +4,10 @@
 
 import {memo} from 'react';
 import cn from 'classnames';
+import type {SVGProps} from 'react';
 
 export const IconArrowSmall = memo<
-  JSX.IntrinsicElements['svg'] & {
+  SVGProps<SVGSVGElement> & {
     /**
      * The direction the arrow should point.
      * `start` and `end` are relative to the current locale.

src/components/Icon/IconBsky.tsx

@@ -3,10 +3,9 @@
  */
 
 import {memo} from 'react';
+import type {SVGProps} from 'react';
 
-export const IconBsky = memo<JSX.IntrinsicElements['svg']>(function IconBsky(
-  props
-) {
+export const IconBsky = memo<SVGProps<SVGSVGElement>>(function IconBsky(props) {
   return (
     <svg
       aria-label="Bluesky"

src/components/Icon/IconClose.tsx

@@ -3,8 +3,9 @@
  */
 
 import {memo} from 'react';
+import type {SVGProps} from 'react';
 
-export const IconClose = memo<JSX.IntrinsicElements['svg']>(function IconClose(
+export const IconClose = memo<SVGProps<SVGSVGElement>>(function IconClose(
   props
 ) {
   return (

src/components/Icon/IconFacebookCircle.tsx

@@ -3,8 +3,9 @@
  */
 
 import {memo} from 'react';
+import type {SVGProps} from 'react';
 
-export const IconFacebookCircle = memo<JSX.IntrinsicElements['svg']>(
+export const IconFacebookCircle = memo<SVGProps<SVGSVGElement>>(
   function IconFacebookCircle(props) {
     return (
       <svg

src/components/Icon/IconGitHub.tsx

@@ -3,19 +3,20 @@
  */
 
 import {memo} from 'react';
+import type {SVGProps} from 'react';
 
-export const IconGitHub = memo<JSX.IntrinsicElements['svg']>(
-  function IconGitHub(props) {
-    return (
-      <svg
-        xmlns="http://www.w3.org/2000/svg"
-        width="1.5em"
-        height="1.5em"
-        viewBox="0 -2 24 24"
-        fill="currentColor"
-        {...props}>
-        <path d="M10 0a10 10 0 0 0-3.16 19.49c.5.1.68-.22.68-.48l-.01-1.7c-2.78.6-3.37-1.34-3.37-1.34-.46-1.16-1.11-1.47-1.11-1.47-.9-.62.07-.6.07-.6 1 .07 1.53 1.03 1.53 1.03.9 1.52 2.34 1.08 2.91.83.1-.65.35-1.09.63-1.34-2.22-.25-4.55-1.11-4.55-4.94 0-1.1.39-1.99 1.03-2.69a3.6 3.6 0 0 1 .1-2.64s.84-.27 2.75 1.02a9.58 9.58 0 0 1 5 0c1.91-1.3 2.75-1.02 2.75-1.02.55 1.37.2 2.4.1 2.64.64.7 1.03 1.6 1.03 2.69 0 3.84-2.34 4.68-4.57 4.93.36.31.68.92.68 1.85l-.01 2.75c0 .26.18.58.69.48A10 10 0 0 0 10 0"></path>
-      </svg>
-    );
-  }
-);
+export const IconGitHub = memo<SVGProps<SVGSVGElement>>(function IconGitHub(
+  props
+) {
+  return (
+    <svg
+      xmlns="http://www.w3.org/2000/svg"
+      width="1.5em"
+      height="1.5em"
+      viewBox="0 -2 24 24"
+      fill="currentColor"
+      {...props}>
+      <path d="M10 0a10 10 0 0 0-3.16 19.49c.5.1.68-.22.68-.48l-.01-1.7c-2.78.6-3.37-1.34-3.37-1.34-.46-1.16-1.11-1.47-1.11-1.47-.9-.62.07-.6.07-.6 1 .07 1.53 1.03 1.53 1.03.9 1.52 2.34 1.08 2.91.83.1-.65.35-1.09.63-1.34-2.22-.25-4.55-1.11-4.55-4.94 0-1.1.39-1.99 1.03-2.69a3.6 3.6 0 0 1 .1-2.64s.84-.27 2.75 1.02a9.58 9.58 0 0 1 5 0c1.91-1.3 2.75-1.02 2.75-1.02.55 1.37.2 2.4.1 2.64.64.7 1.03 1.6 1.03 2.69 0 3.84-2.34 4.68-4.57 4.93.36.31.68.92.68 1.85l-.01 2.75c0 .26.18.58.69.48A10 10 0 0 0 10 0"></path>
+    </svg>
+  );
+});

src/components/Icon/IconHamburger.tsx

@@ -3,8 +3,9 @@
  */
 
 import {memo} from 'react';
+import type {SVGProps} from 'react';
 
-export const IconHamburger = memo<JSX.IntrinsicElements['svg']>(
+export const IconHamburger = memo<SVGProps<SVGSVGElement>>(
   function IconHamburger(props) {
     return (
       <svg

src/components/Icon/IconInstagram.tsx

@@ -3,8 +3,9 @@
  */
 
 import {memo} from 'react';
+import type {SVGProps} from 'react';
 
-export const IconInstagram = memo<JSX.IntrinsicElements['svg']>(
+export const IconInstagram = memo<SVGProps<SVGSVGElement>>(
   function IconInstagram(props) {
     return (
       <svg

src/components/Icon/IconLink.tsx

@@ -3,10 +3,9 @@
  */
 
 import {memo} from 'react';
+import type {SVGProps} from 'react';
 
-export const IconLink = memo<JSX.IntrinsicElements['svg']>(function IconLink(
-  props
-) {
+export const IconLink = memo<SVGProps<SVGSVGElement>>(function IconLink(props) {
   return (
     <svg
       xmlns="http://www.w3.org/2000/svg"