Update devtools

I'm not sure if this is actually right. Relying on CI.

Author: sebmarkbage

packages/react-devtools-inline/README.md

@@ -60,7 +60,7 @@ const contentWindow = iframe.contentWindow;
 const DevTools = initialize(contentWindow);
 ```
 
-<sup>3</sup> Because the DevTools interface makes use of several new React APIs (e.g. suspense, concurrent mode) it should be rendered using either `ReactDOM.createRoot` or `ReactDOM.createSyncRoot`. **It should not be rendered with `ReactDOM.render`.**
+<sup>3</sup> Because the DevTools interface makes use of several new React APIs (e.g. suspense, concurrent mode) it should be rendered using `ReactDOMClient.createRoot`. **It should not be rendered with `ReactDOM.render`.**
 
 ## Examples
 
@@ -110,8 +110,7 @@ const DevTools = initializeFrontend(contentWindow);
 // as setting the src of the <iframe> would load a new page (without the injected backend).
 
 // <DevTools /> interface can be rendered in the parent window at any time now...
-// Be sure to use either ReactDOM.createRoot()
-// or ReactDOM.createSyncRoot() to render this component.
+// Be sure to use ReactDOMClient.createRoot() to render this component.
 
 // Let the backend know the frontend is ready and listening.
 activateBackend(contentWindow);
@@ -154,8 +153,7 @@ const { contentWindow } = iframe;
 
 // Initialize DevTools UI to listen to the iframe.
 // This returns a React component we can render anywhere in the main window.
-// Be sure to use either ReactDOM.createRoot()
-// or ReactDOM.createSyncRoot() to render this component.
+// Be sure to use ReactDOMClient.createRoot() to render this component.
 const DevTools = initialize(contentWindow);
 
 // Let the backend know to initialize itself.

packages/react-devtools-shell/src/app/index.js

@@ -6,9 +6,8 @@ import {createElement} from 'react';
 import {
   // $FlowFixMe Flow does not yet know about createRoot()
   createRoot,
-  render,
-  unmountComponentAtNode,
-} from 'react-dom';
+} from 'react-dom/client';
+import {render, unmountComponentAtNode} from 'react-dom';
 import DeeplyNestedComponents from './DeeplyNestedComponents';
 import Iframe from './Iframe';
 import EditableProps from './EditableProps';

packages/react-devtools-shell/src/e2e/app.js

@@ -4,6 +4,7 @@
 
 import * as React from 'react';
 import * as ReactDOM from 'react-dom';
+import * as ReactDOMClient from 'react-dom/client';
 
 const container = document.createElement('div');
 
@@ -14,7 +15,7 @@ const container = document.createElement('div');
 const App = require('./apps/ListApp').default;
 
 // $FlowFixMe Flow doesn't know about createRoot() yet.
-const root = ReactDOM.createRoot(container);
+const root = ReactDOMClient.createRoot(container);
 root.render(<App />);
 
 // ReactDOM Test Selector APIs used by Playwright e2e tests

packages/react-devtools-shell/src/e2e/devtools.js

@@ -1,5 +1,6 @@
 import * as React from 'react';
 import * as ReactDOM from 'react-dom';
+import * as ReactDOMClient from 'react-dom/client';
 import {
   activate as activateBackend,
   initialize as initializeBackend,
@@ -33,7 +34,7 @@ function init(appIframe, devtoolsContainer, appSource) {
 
   inject(contentDocument, appSource, () => {
     // $FlowFixMe Flow doesn't know about createRoot() yet.
-    ReactDOM.createRoot(devtoolsContainer).render(
+    ReactDOMClient.createRoot(devtoolsContainer).render(
       <DevTools
         hookNamesModuleLoaderFunction={hookNamesModuleLoaderFunction}
         showTabBar={true}