[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

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

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

@@ -8,7 +8,6 @@ global.__DEV__ = NODE_ENV === 'development';
 global.__EXTENSION__ = false;
 global.__TEST__ = NODE_ENV === 'test';
 global.__PROFILE__ = NODE_ENV === 'development';
-global.__UMD__ = false;
 
 const RELEASE_CHANNEL = process.env.RELEASE_CHANNEL;