[UMD] Remove UMD builds

UMD builds will not be supported in React 19. These are no longer widely used and the use case for using React from script tags without builds can be served by ESM using something like esm.sh.

Author: gnoff

.eslintrc.js

@@ -539,7 +539,6 @@ module.exports = {
     __EXTENSION__: 'readonly',
     __PROFILE__: 'readonly',
     __TEST__: 'readonly',
-    __UMD__: 'readonly',
     __VARIANT__: 'readonly',
     __unmockReact: 'readonly',
     gate: 'readonly',

packages/react-art/package.json

@@ -34,7 +34,6 @@
     "README.md",
     "index.js",
     "cjs/",
-    "umd/",
     "Circle.js",
     "Rectangle.js",
     "Wedge.js"

packages/react-cache/package.json

@@ -12,8 +12,7 @@
     "LICENSE",
     "README.md",
     "index.js",
-    "cjs/",
-    "umd/"
+    "cjs/"
   ],
   "peerDependencies": {
     "react": "^17.0.0"

packages/react-dom/client.js

@@ -27,13 +27,13 @@ export function createRoot(
   options?: CreateRootOptions,
 ): RootType {
   if (__DEV__) {
-    (Internals: any).usingClientEntryPoint = true;
+    Internals.usingClientEntryPoint = true;
   }
   try {
     return createRootImpl(container, options);
   } finally {
     if (__DEV__) {
-      (Internals: any).usingClientEntryPoint = false;
+      Internals.usingClientEntryPoint = false;
     }
   }
 }
@@ -44,13 +44,13 @@ export function hydrateRoot(
   options?: HydrateRootOptions,
 ): RootType {
   if (__DEV__) {
-    (Internals: any).usingClientEntryPoint = true;
+    Internals.usingClientEntryPoint = true;
   }
   try {
     return hydrateRootImpl(container, children, options);
   } finally {
     if (__DEV__) {
-      (Internals: any).usingClientEntryPoint = false;
+      Internals.usingClientEntryPoint = false;
     }
   }
 }

packages/react-dom/package.json

@@ -47,8 +47,7 @@
     "unstable_testing.js",
     "unstable_testing.react-server.js",
     "unstable_server-external-runtime.js",
-    "cjs/",
-    "umd/"
+    "cjs/"
   ],
   "exports": {
     ".": {

packages/react-dom/src/client/ReactDOM.js

@@ -89,7 +89,7 @@ function createRoot(
   options?: CreateRootOptions,
 ): RootType {
   if (__DEV__) {
-    if (!(Internals: any).usingClientEntryPoint && !__UMD__) {
+    if (!Internals.usingClientEntryPoint) {
       console.error(
         'You are importing createRoot from "react-dom" which is not supported. ' +
           'You should instead import it from "react-dom/client".',
@@ -105,7 +105,7 @@ function hydrateRoot(
   options?: HydrateRootOptions,
 ): RootType {
   if (__DEV__) {
-    if (!(Internals: any).usingClientEntryPoint && !__UMD__) {
+    if (!Internals.usingClientEntryPoint) {
       console.error(
         'You are importing hydrateRoot from "react-dom" which is not supported. ' +
           'You should instead import it from "react-dom/client".',

packages/react-is/package.json

@@ -21,7 +21,6 @@
     "LICENSE",
     "README.md",
     "index.js",
-    "cjs/",
-    "umd/"
+    "cjs/"
   ]
 }

packages/react-refresh/package.json

@@ -13,8 +13,7 @@
     "README.md",
     "babel.js",
     "runtime.js",
-    "cjs/",
-    "umd/"
+    "cjs/"
   ],
   "main": "runtime.js",
   "exports": {

packages/react-server-dom-turbopack/package.json

@@ -24,7 +24,6 @@
     "server.node.unbundled.js",
     "node-register.js",
     "cjs/",
-    "umd/",
     "esm/"
   ],
   "exports": {

packages/react-server-dom-webpack/package.json

@@ -25,7 +25,6 @@
     "server.node.unbundled.js",
     "node-register.js",
     "cjs/",
-    "umd/",
     "esm/"
   ],
   "exports": {

packages/react-test-renderer/package.json

@@ -30,7 +30,6 @@
     "README.md",
     "index.js",
     "shallow.js",
-    "cjs/",
-    "umd/"
+    "cjs/"
   ]
 }

packages/react/package.json

@@ -13,7 +13,6 @@
     "README.md",
     "index.js",
     "cjs/",
-    "umd/",
     "jsx-runtime.js",
     "jsx-runtime.react-server.js",
     "jsx-dev-runtime.js",

packages/react/src/forks/ReactSharedInternalsClient.umd.js

@@ -22,7 +22,6 @@
     "index.native.js",
     "unstable_mock.js",
     "unstable_post_task.js",
-    "cjs/",
-    "umd/"
+    "cjs/"
   ]
 }

packages/scheduler/package.json

@@ -1,15 +1 @@
-/**
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-// TODO: this is special because it gets imported during build.
-//
-// It exists as a placeholder so that DevTools can support work tag changes between releases.
-// When we next publish a release, update the matching TODO in backend/renderer.js
-// TODO: This module is used both by the release scripts and to expose a version
-// at runtime. We should instead inject the version number as part of the build
-// process, and use the ReactVersions.js module as the single source of truth.
-export default '19.0.0';
+export default '19.0.0-PLACEHOLDER';

packages/scheduler/src/__tests__/SchedulerUMDBundle-test.internal.js

@@ -10,7 +10,6 @@
 /* eslint-disable */
 
 declare const __PROFILE__: boolean;
-declare const __UMD__: boolean;
 declare const __EXPERIMENTAL__: boolean;
 declare const __VARIANT__: boolean;