Support React 19 in App and Pages router

docs/02-app/01-building-your-application/02-data-fetching/02-server-actions-and-mutations.mdx

@@ -358,10 +358,10 @@ export default async function createsUser(formData) {
 }
 ```
 
-Once the fields have been validated on the server, you can return a serializable object in your action and use the React [`useFormState`](https://react.dev/reference/react-dom/hooks/useFormState) hook to show a message to the user.
+Once the fields have been validated on the server, you can return a serializable object in your action and use the React [`useActionState`](https://react.dev/reference/react-dom/hooks/useActionState) hook to show a message to the user.
 
-- By passing the action to `useFormState`, the action's function signature changes to receive a new `prevState` or `initialState` parameter as its first argument.
-- `useFormState` is a React hook and therefore must be used in a Client Component.
+- By passing the action to `useActionState`, the action's function signature changes to receive a new `prevState` or `initialState` parameter as its first argument.
+- `useActionState` is a React hook and therefore must be used in a Client Component.
 
 ```tsx filename="app/actions.ts" switcher
 'use server'
@@ -385,20 +385,20 @@ export async function createUser(prevState, formData) {
 }
 ```
 
-Then, you can pass your action to the `useFormState` hook and use the returned `state` to display an error message.
+Then, you can pass your action to the `useActionState` hook and use the returned `state` to display an error message.
 
 ```tsx filename="app/ui/signup.tsx" switcher
 'use client'
 
-import { useFormState } from 'react-dom'
+import { useActionState } from 'react'
 import { createUser } from '@/app/actions'
 
 const initialState = {
   message: '',
 }
 
 export function Signup() {
-  const [state, formAction] = useFormState(createUser, initialState)
+  const [state, formAction] = useActionState(createUser, initialState)
 
   return (
     <form action={formAction}>
@@ -417,15 +417,15 @@ export function Signup() {
 ```jsx filename="app/ui/signup.js" switcher
 'use client'
 
-import { useFormState } from 'react-dom'
+import { useActionState } from 'react'
 import { createUser } from '@/app/actions'
 
 const initialState = {
   message: '',
 }
 
 export function Signup() {
-  const [state, formAction] = useFormState(createUser, initialState)
+  const [state, formAction] = useActionState(createUser, initialState)
 
   return (
     <form action={formAction}>
@@ -739,7 +739,7 @@ export async function createTodo(prevState, formData) {
 
 > **Good to know:**
 >
-> - Aside from throwing the error, you can also return an object to be handled by `useFormState`. See [Server-side validation and error handling](#server-side-validation-and-error-handling).
+> - Aside from throwing the error, you can also return an object to be handled by `useActionState`. See [Server-side validation and error handling](#server-side-validation-and-error-handling).
 
 ### Revalidating data
 
@@ -1002,5 +1002,5 @@ For more information on Server Actions, check out the following React docs:
 - [`"use server"`](https://react.dev/reference/react/use-server)
 - [`<form>`](https://react.dev/reference/react-dom/components/form)
 - [`useFormStatus`](https://react.dev/reference/react-dom/hooks/useFormStatus)
-- [`useFormState`](https://react.dev/reference/react-dom/hooks/useFormState)
+- [`useActionState`](https://react.dev/reference/react-dom/hooks/useActionState)
 - [`useOptimistic`](https://react.dev/reference/react/useOptimistic)

docs/02-app/01-building-your-application/09-authentication/index.mdx

@@ -29,7 +29,7 @@ The examples on this page walk through basic username and password auth for educ
 
 ### Sign-up and login functionality
 
-You can use the [`<form>`](https://react.dev/reference/react-dom/components/form) element with React's [Server Actions](/docs/app/building-your-application/rendering/server-components), [`useFormStatus()`](https://react.dev/reference/react-dom/hooks/useFormStatus), and [`useFormState()`](https://react.dev/reference/react-dom/hooks/useFormState) to capture user credentials, validate form fields, and call your Authentication Provider's API or database.
+You can use the [`<form>`](https://react.dev/reference/react-dom/components/form) element with React's [Server Actions](/docs/app/building-your-application/rendering/server-components), [`useFormStatus()`](https://react.dev/reference/react-dom/hooks/useFormStatus), and [`useActionState()`](https://react.dev/reference/react/useActionState) to capture user credentials, validate form fields, and call your Authentication Provider's API or database.
 
 Since Server Actions always execute on the server, they provide a secure environment for handling authentication logic.
 
@@ -200,16 +200,16 @@ export async function signup(state, formData) {
 }
 ```
 
-Back in your `<SignupForm />`, you can use React's `useFormState()` hook to display validation errors to the user:
+Back in your `<SignupForm />`, you can use React's `useActionState()` hook to display validation errors to the user:
 
 ```tsx filename="app/ui/signup-form.tsx" switcher highlight={7,15,21,27-36}
 'use client'
 
-import { useFormState } from 'react-dom'
+import { useActionState } from 'react'
 import { signup } from '@/app/actions/auth'
 
 export function SignupForm() {
-  const [state, action] = useFormState(signup, undefined)
+  const [state, action] = useActionState(signup, undefined)
 
   return (
     <form action={action}>
@@ -248,11 +248,11 @@ export function SignupForm() {
 ```jsx filename="app/ui/signup-form.js" switcher highlight={7,15,21,27-36}
 'use client'
 
-import { useFormState } from 'react-dom'
+import { useActionState } from 'react'
 import { signup } from '@/app/actions/auth'
 
 export function SignupForm() {
-  const [state, action] = useFormState(signup, undefined)
+  const [state, action] = useActionState(signup, undefined)
 
   return (
     <form action={action}>
@@ -293,7 +293,8 @@ You can also use the `useFormStatus()` hook to handle the pending state on form
 ```tsx filename="app/ui/signup-form.tsx" highlight={6} switcher
 'use client'
 
-import { useFormStatus, useFormState } from 'react-dom'
+import { useActionState } from 'react'
+import { useFormStatus } from 'react-dom'
 
 export function SignupButton() {
   const { pending } = useFormStatus()
@@ -309,7 +310,8 @@ export function SignupButton() {
 ```jsx filename="app/ui/signup-form.js"  highlight={6} switcher
 'use client'
 
-import { useFormStatus, useFormState } from 'react-dom'
+import { useActionState } from 'react'
+import { useFormStatus } from 'react-dom'
 
 export function SignupButton() {
   const { pending } = useFormStatus()

examples/next-forms/app/add-form.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useFormState, useFormStatus } from "react-dom";
+import { useActionState } from "react";
+import { useFormStatus } from "react-dom";
 import { createTodo } from "@/app/actions";
 
 const initialState = {
@@ -18,7 +19,7 @@ function SubmitButton() {
 }
 
 export function AddForm() {
-  const [state, formAction] = useFormState(createTodo, initialState);
+  const [state, formAction] = useActionState(createTodo, initialState);
 
   return (
     <form action={formAction}>

examples/next-forms/app/delete-form.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useFormState, useFormStatus } from "react-dom";
+import { useActionState } from "react";
+import { useFormStatus } from "react-dom";
 import { deleteTodo } from "@/app/actions";
 
 const initialState = {
@@ -18,7 +19,7 @@ function DeleteButton() {
 }
 
 export function DeleteForm({ id, todo }: { id: number; todo: string }) {
-  const [state, formAction] = useFormState(deleteTodo, initialState);
+  const [state, formAction] = useActionState(deleteTodo, initialState);
 
   return (
     <form action={formAction}>

examples/with-fauna/components/EntryForm.tsx

@@ -3,7 +3,9 @@
 import cn from "classnames";
 import { createEntryAction } from "@/actions/entry";
 // @ts-ignore
-import { useFormState, useFormStatus } from "react-dom";
+import { useActionState } from "react";
+// @ts-ignore
+import { useFormStatus } from "react-dom";
 import LoadingSpinner from "@/components/LoadingSpinner";
 import SuccessMessage from "@/components/SuccessMessage";
 import ErrorMessage from "@/components/ErrorMessage";
@@ -20,7 +22,7 @@ const initialState = {
 };
 
 export default function EntryForm() {
-  const [state, formAction] = useFormState(createEntryAction, initialState);
+  const [state, formAction] = useActionState(createEntryAction, initialState);
   const { pending } = useFormStatus();
 
   return (

package.json

@@ -196,18 +196,18 @@
     "pretty-bytes": "5.3.0",
     "pretty-ms": "7.0.0",
     "random-seed": "0.3.0",
-    "react": "18.2.0",
+    "react": "19.0.0-beta-4508873393-20240430",
     "react-17": "npm:react@17.0.2",
-    "react-builtin": "npm:react@18.3.0-canary-c3048aab4-20240326",
-    "react-dom": "18.2.0",
+    "react-builtin": "npm:react@19.0.0-beta-4508873393-20240430",
+    "react-dom": "19.0.0-beta-4508873393-20240430",
     "react-dom-17": "npm:react-dom@17.0.2",
-    "react-dom-builtin": "npm:react-dom@18.3.0-canary-c3048aab4-20240326",
-    "react-dom-experimental-builtin": "npm:react-dom@0.0.0-experimental-c3048aab4-20240326",
-    "react-experimental-builtin": "npm:react@0.0.0-experimental-c3048aab4-20240326",
-    "react-server-dom-turbopack": "18.3.0-canary-c3048aab4-20240326",
-    "react-server-dom-turbopack-experimental": "npm:react-server-dom-turbopack@0.0.0-experimental-c3048aab4-20240326",
-    "react-server-dom-webpack": "18.3.0-canary-c3048aab4-20240326",
-    "react-server-dom-webpack-experimental": "npm:react-server-dom-webpack@0.0.0-experimental-c3048aab4-20240326",
+    "react-dom-builtin": "npm:react-dom@19.0.0-beta-4508873393-20240430",
+    "react-dom-experimental-builtin": "npm:react-dom@0.0.0-experimental-4508873393-20240430",
+    "react-experimental-builtin": "npm:react@0.0.0-experimental-4508873393-20240430",
+    "react-server-dom-turbopack": "19.0.0-beta-4508873393-20240430",
+    "react-server-dom-turbopack-experimental": "npm:react-server-dom-turbopack@0.0.0-experimental-4508873393-20240430",
+    "react-server-dom-webpack": "19.0.0-beta-4508873393-20240430",
+    "react-server-dom-webpack-experimental": "npm:react-server-dom-webpack@0.0.0-experimental-4508873393-20240430",
     "react-ssr-prepass": "1.0.8",
     "react-virtualized": "9.22.3",
     "relay-compiler": "13.0.2",
@@ -217,8 +217,8 @@
     "resolve-from": "5.0.0",
     "sass": "1.54.0",
     "satori": "0.10.9",
-    "scheduler-builtin": "npm:scheduler@0.24.0-canary-c3048aab4-20240326",
-    "scheduler-experimental-builtin": "npm:scheduler@0.0.0-experimental-c3048aab4-20240326",
+    "scheduler-builtin": "npm:scheduler@0.25.0-beta-4508873393-20240430",
+    "scheduler-experimental-builtin": "npm:scheduler@0.0.0-experimental-4508873393-20240430",
     "seedrandom": "3.0.5",
     "selenium-webdriver": "4.0.0-beta.4",
     "semver": "7.3.7",
@@ -252,7 +252,11 @@
     "@babel/types": "7.22.5",
     "@babel/traverse": "7.22.5",
     "@types/react": "18.2.74",
-    "@types/react-dom": "18.2.23"
+    "@types/react-dom": "18.2.23",
+    "react": "19.0.0-beta-4508873393-20240430",
+    "react-dom": "19.0.0-beta-4508873393-20240430",
+    "react-is": "19.0.0-beta-4508873393-20240430",
+    "scheduler": "0.25.0-beta-94eed63c49-20240425"
   },
   "engines": {
     "node": ">=18.17.0",

packages/next-swc/crates/next-core/src/next_import_map.rs

@@ -728,16 +728,21 @@ async fn rsc_aliases(
         }
     }
 
-    if runtime == NextRuntime::Edge {
-        if ty.supports_react_server() {
-            alias["react"] = format!("next/dist/compiled/react{react_channel}/react.react-server");
-            alias["react-dom"] =
-                format!("next/dist/compiled/react-dom{react_channel}/react-dom.react-server");
-        } else {
-            // x-ref: https://github.com/facebook/react/pull/25436
-            alias["react-dom"] =
-                format!("next/dist/compiled/react-dom{react_channel}/server-rendering-stub");
-        }
+    if runtime == NextRuntime::Edge && ty.supports_react_server() {
+        alias.extend(indexmap! {
+            "react" => format!("next/dist/compiled/react{react_channel}/react.react-server"),
+            "next/dist/compiled/react" => format!("next/dist/compiled/react{react_channel}/react.react-server"),
+            "next/dist/compiled/react-experimental" =>  format!("next/dist/compiled/react-experimental/react.react-server"),
+            "react/jsx-runtime" => format!("next/dist/compiled/react{react_channel}/jsx-runtime.react-server"),
+            "next/dist/compiled/react/jsx-runtime" => format!("next/dist/compiled/react{react_channel}/jsx-runtime.react-server"),
+            "next/dist/compiled/react-experimental/jsx-runtime" => format!("next/dist/compiled/react-experimental/jsx-runtime.react-server"),
+            "react/jsx-dev-runtime" => format!("next/dist/compiled/react{react_channel}/jsx-dev-runtime.react-server"),
+            "next/dist/compiled/react/jsx-dev-runtime" => format!("next/dist/compiled/react{react_channel}/jsx-dev-runtime.react-server"),
+            "next/dist/compiled/react-experimental/jsx-dev-runtime" => format!("next/dist/compiled/react-experimental/jsx-dev-runtime.react-server"),
+            "react-dom" => format!("next/dist/compiled/react-dom{react_channel}/react-dom.react-server"),
+            "next/dist/compiled/react-dom" => format!("next/dist/compiled/react-dom{react_channel}/react-dom.react-server"),
+            "next/dist/compiled/react-dom-experimental" => format!("next/dist/compiled/react-dom-experimental/react-dom.react-server"),
+        })
     }
 
     insert_exact_alias_map(import_map, project_path, alias);

packages/next-swc/crates/next-custom-transforms/src/transforms/react_server_components.rs

@@ -506,12 +506,12 @@ impl ReactServerComponentValidator {
                         "useSyncExternalStore",
                         "useTransition",
                         "useOptimistic",
+                        "useActionState",
                     ],
                 ),
                 (
                     "react-dom",
                     vec![
-                        "findDOMNode",
                         "flushSync",
                         "unstable_batchedUpdates",
                         "useFormStatus",

packages/next-swc/crates/next-custom-transforms/tests/errors/react-server-components/server-graph/react-dom-api/input.js

@@ -1,4 +1,6 @@
-import { findDOMNode, flushSync, unstable_batchedUpdates } from 'react-dom'
+import { flushSync, unstable_batchedUpdates } from 'react-dom'
+
+import { useActionState } from 'react'
 
 import { useFormStatus, useFormState } from 'react-dom'
 

packages/next-swc/crates/next-custom-transforms/tests/errors/react-server-components/server-graph/react-dom-api/output.js

@@ -1,4 +1,5 @@
-import { findDOMNode, flushSync, unstable_batchedUpdates } from 'react-dom';
+import {  flushSync, unstable_batchedUpdates } from 'react-dom';
+import { useActionState } from 'react'
 import { useFormStatus, useFormState } from 'react-dom';
 export default function() {
     return null;

packages/next-swc/crates/next-custom-transforms/tests/errors/react-server-components/server-graph/react-dom-api/output.stderr

@@ -1,48 +1,49 @@
 
-  x You're importing a component that needs findDOMNode. It only works in a Client Component but none of its parents are marked with "use client", so they're Server Components by default.
+  x You're importing a component that needs flushSync. It only works in a Client Component but none of its parents are marked with "use client", so they're Server Components by default.
   | Learn more: https://nextjs.org/docs/getting-started/react-essentials
   | 
   | 
    ,-[input.js:1:1]
- 1 | import { findDOMNode, flushSync, unstable_batchedUpdates } from 'react-dom'
-   :          ^^^^^^^^^^^
+ 1 | import { flushSync, unstable_batchedUpdates } from 'react-dom'
+   :          ^^^^^^^^^
    `----
 
-  x You're importing a component that needs flushSync. It only works in a Client Component but none of its parents are marked with "use client", so they're Server Components by default.
+  x You're importing a component that needs unstable_batchedUpdates. It only works in a Client Component but none of its parents are marked with "use client", so they're Server Components by
+  | default.
   | Learn more: https://nextjs.org/docs/getting-started/react-essentials
   | 
   | 
    ,-[input.js:1:1]
- 1 | import { findDOMNode, flushSync, unstable_batchedUpdates } from 'react-dom'
-   :                       ^^^^^^^^^
+ 1 | import { flushSync, unstable_batchedUpdates } from 'react-dom'
+   :                     ^^^^^^^^^^^^^^^^^^^^^^^
    `----
 
-  x You're importing a component that needs unstable_batchedUpdates. It only works in a Client Component but none of its parents are marked with "use client", so they're Server Components by
-  | default.
+  x You're importing a component that needs useActionState. It only works in a Client Component but none of its parents are marked with "use client", so they're Server Components by default.
   | Learn more: https://nextjs.org/docs/getting-started/react-essentials
   | 
   | 
-   ,-[input.js:1:1]
- 1 | import { findDOMNode, flushSync, unstable_batchedUpdates } from 'react-dom'
-   :                                  ^^^^^^^^^^^^^^^^^^^^^^^
+   ,-[input.js:2:1]
+ 2 | 
+ 3 | import { useActionState } from 'react'
+   :          ^^^^^^^^^^^^^^
    `----
 
   x You're importing a component that needs useFormStatus. It only works in a Client Component but none of its parents are marked with "use client", so they're Server Components by default.
   | Learn more: https://nextjs.org/docs/getting-started/react-essentials
   | 
   | 
-   ,-[input.js:2:1]
- 2 | 
- 3 | import { useFormStatus, useFormState } from 'react-dom'
+   ,-[input.js:4:1]
+ 4 | 
+ 5 | import { useFormStatus, useFormState } from 'react-dom'
    :          ^^^^^^^^^^^^^
    `----
 
   x You're importing a component that needs useFormState. It only works in a Client Component but none of its parents are marked with "use client", so they're Server Components by default.
   | Learn more: https://nextjs.org/docs/getting-started/react-essentials
   | 
   | 
-   ,-[input.js:2:1]
- 2 | 
- 3 | import { useFormStatus, useFormState } from 'react-dom'
+   ,-[input.js:4:1]
+ 4 | 
+ 5 | import { useFormStatus, useFormState } from 'react-dom'
    :                         ^^^^^^^^^^^^
    `----

packages/next/package.json

@@ -104,8 +104,8 @@
   "peerDependencies": {
     "@opentelemetry/api": "^1.1.0",
     "@playwright/test": "^1.41.2",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
+    "react": "19.0.0-beta-4508873393-20240430",
+    "react-dom": "19.0.0-beta-4508873393-20240430",
     "sass": "^1.3.0"
   },
   "peerDependenciesMeta": {
@@ -282,7 +282,7 @@
     "punycode": "2.1.1",
     "querystring-es3": "0.2.1",
     "raw-body": "2.4.1",
-    "react-is": "18.2.0",
+    "react-is": "19.0.0-canary-94eed63c49-20240425",
     "react-refresh": "0.12.0",
     "regenerator-runtime": "0.13.4",
     "sass-loader": "12.4.0",