microsoft · compulim · Sep 29, 2025 · Sep 29, 2025 · Sep 29, 2025 · Sep 29, 2025
@@ -140,6 +140,8 @@ Notes: web developers are advised to use [`~` (tilde range)](https://github.com/
 - (Experimental) Added support for importing via `<script type="module">`, by [@compulim](https://github.com/compulim) in PR [#5592](https://github.com/microsoft/BotFramework-WebChat/pull/5592)
    - Added support for `botframework-webchat-fluent-theme` package, by [@compulim](https://github.com/compulim) in PR [#5593](https://github.com/microsoft/BotFramework-WebChat/pull/5593)
    - Bundling vendor chunks, by [@compulim](https://github.com/compulim) in PR [#5595](https://github.com/microsoft/BotFramework-WebChat/pull/5595)
+   - Added deprecation notes for legacy imports, by [@compulim](https://github.com/compulim) in PR [#5600](https://github.com/microsoft/BotFramework-WebChat/pull/5600)
+      - `import { hooks } from 'botframework-webchat'` should be replaced by `import * as hooks from 'botframework-webchat/hook'`
 
 ### Changed
 

@@ -0,0 +1,51 @@
+<!doctype html>
+<html lang="en-US">
+  <head>
+    <link href="/assets/index.css" rel="stylesheet" type="text/css" />
+  </head>
+  <body>
+    <main id="webchat"></main>
+    <script type="importmap">
+      {
+        "imports": {
+          "botframework-webchat": "/__dist__/packages/bundle/static/botframework-webchat.js",
+          "jest-mock": "https://esm.sh/jest-mock",
+          "react": "/__dist__/packages/bundle/static/react.js",
+          "react-dom": "/__dist__/packages/bundle/static/react-dom.js"
+        }
+      }
+    </script>
+    <script type="module">
+      import { fn, spyOn } from 'jest-mock';
+
+      spyOn(console, 'warn');
+    </script>
+    <script type="module">
+      import '/test-harness.mjs';
+      import '/test-page-object.mjs';
+
+      import { Components, createDirectLine, createStoreWithOptions, renderWebChat } from 'botframework-webchat';
+      import { version } from 'react';
+
+      run(async function () {
+        expect(console.warn).toHaveBeenCalledTimes(0);
+
+        // WHEN: Touching "Components.BasicWebChat".
+        expect(Components.BasicWebChat).not.toBeUndefined();
+
+        // THEN: Should show deprecation note.
+        expect(console.warn).toHaveBeenCalledTimes(1);
+        expect(console.warn).toHaveBeenLastCalledWith(
+          "botframework-webchat: `import { Components } from 'botframework-webchat'` has been deprecated, use `import { %s } from 'botframework-webchat/component'` instead.",
+          'BasicWebChat'
+        );
+
+        // WHEN: Touching "Components.BasicTranscript".
+        expect(Components.BasicWebChat).not.toBeUndefined();
+
+        // THEN: Should not show deprecation note again.
+        expect(console.warn).toHaveBeenCalledTimes(1);
+      });
+    </script>
+  </body>
+</html>
@@ -0,0 +1,42 @@
+<!doctype html>
+<html lang="en-US">
+  <head>
+    <link href="/assets/index.css" rel="stylesheet" type="text/css" />
+  </head>
+  <body>
+    <main id="webchat"></main>
+    <script type="importmap">
+      {
+        "imports": {
+          "botframework-webchat": "/__dist__/packages/bundle/static/botframework-webchat.js",
+          "botframework-webchat/component": "/__dist__/packages/bundle/static/botframework-webchat/component.js",
+          "jest-mock": "https://esm.sh/jest-mock",
+          "react": "/__dist__/packages/bundle/static/react.js",
+          "react-dom": "/__dist__/packages/bundle/static/react-dom.js"
+        }
+      }
+    </script>
+    <script type="module">
+      import { fn, spyOn } from 'jest-mock';
+
+      spyOn(console, 'warn');
+    </script>
+    <script type="module">
+      import '/test-harness.mjs';
+      import '/test-page-object.mjs';
+
+      import { createDirectLine, createStoreWithOptions, renderWebChat } from 'botframework-webchat';
+      import * as Components from 'botframework-webchat/component';
+      import { version } from 'react';
+
+      run(async function () {
+        expect(console.warn).toHaveBeenCalledTimes(0);
+
+        // WHEN: Touching anything about "hooks".
+        expect(Components.BasicWebChat).not.toBeUndefined();
+
+        expect(console.warn).toHaveBeenCalledTimes(0);
+      });
+    </script>
+  </body>
+</html>
@@ -0,0 +1,51 @@
+<!doctype html>
+<html lang="en-US">
+  <head>
+    <link href="/assets/index.css" rel="stylesheet" type="text/css" />
+  </head>
+  <body>
+    <main id="webchat"></main>
+    <script type="importmap">
+      {
+        "imports": {
+          "botframework-webchat": "/__dist__/packages/bundle/static/botframework-webchat.js",
+          "jest-mock": "https://esm.sh/jest-mock",
+          "react": "/__dist__/packages/bundle/static/react.js",
+          "react-dom": "/__dist__/packages/bundle/static/react-dom.js"
+        }
+      }
+    </script>
+    <script type="module">
+      import { fn, spyOn } from 'jest-mock';
+
+      spyOn(console, 'warn');
+    </script>
+    <script type="module">
+      import '/test-harness.mjs';
+      import '/test-page-object.mjs';
+
+      import { createDirectLine, createStoreWithOptions, hooks, renderWebChat } from 'botframework-webchat';
+      import { version } from 'react';
+
+      run(async function () {
+        expect(console.warn).toHaveBeenCalledTimes(0);
+
+        // WHEN: Touching "hooks.useStyleOptions".
+        expect(hooks.useStyleOptions).not.toBeUndefined();
+
+        // THEN: Should show deprecation note.
+        expect(console.warn).toHaveBeenCalledTimes(1);
+        expect(console.warn).toHaveBeenLastCalledWith(
+          "botframework-webchat: `import { hooks } from 'botframework-webchat'` has been deprecated, use `import { %s } from 'botframework-webchat/hook'` instead.",
+          'useStyleOptions'
+        );
+
+        // WHEN: Touching "hooks.useStyleSet".
+        expect(hooks.useStyleSet).not.toBeUndefined();
+
+        // THEN: Should not show deprecation note again.
+        expect(console.warn).toHaveBeenCalledTimes(1);
+      });
+    </script>
+  </body>
+</html>
@@ -0,0 +1,42 @@
+<!doctype html>
+<html lang="en-US">
+  <head>
+    <link href="/assets/index.css" rel="stylesheet" type="text/css" />
+  </head>
+  <body>
+    <main id="webchat"></main>
+    <script type="importmap">
+      {
+        "imports": {
+          "botframework-webchat": "/__dist__/packages/bundle/static/botframework-webchat.js",
+          "botframework-webchat/hook": "/__dist__/packages/bundle/static/botframework-webchat/hook.js",
+          "jest-mock": "https://esm.sh/jest-mock",
+          "react": "/__dist__/packages/bundle/static/react.js",
+          "react-dom": "/__dist__/packages/bundle/static/react-dom.js"
+        }
+      }
+    </script>
+    <script type="module">
+      import { fn, spyOn } from 'jest-mock';
+
+      spyOn(console, 'warn');
+    </script>
+    <script type="module">
+      import '/test-harness.mjs';
+      import '/test-page-object.mjs';
+
+      import { createDirectLine, createStoreWithOptions, renderWebChat } from 'botframework-webchat';
+      import * as hooks from 'botframework-webchat/hook';
+      import { version } from 'react';
+
+      run(async function () {
+        expect(console.warn).toHaveBeenCalledTimes(0);
+
+        // WHEN: Touching anything about "hooks".
+        expect(hooks.useStyleOptions).not.toBeUndefined();
+
+        expect(console.warn).toHaveBeenCalledTimes(0);
+      });
+    </script>
+  </body>
+</html>
@@ -1,4 +1,4 @@
-import { warnOnce } from 'botframework-webchat-core';
+import { warnOnce } from '@msinternal/botframework-webchat-base/utils';
 import { type Enhancer } from 'handler-chain';
 import React, { memo, type ReactNode } from 'react';
 import {

@@ -1,6 +1,6 @@
 /* eslint no-magic-numbers: ["error", { "ignore": [0, 1024] }] */
 
-import { warnOnce } from 'botframework-webchat-core';
+import { warnOnce } from '@msinternal/botframework-webchat-base/utils';
 import { useCallback } from 'react';
 
 import useWebChatAPIContext from './internal/useWebChatAPIContext';

@@ -1,4 +1,4 @@
-import { warnOnce } from 'botframework-webchat-core';
+import { warnOnce } from '@msinternal/botframework-webchat-base/utils';
 import React, { memo, type ReactNode } from 'react';
 import { createChainOfResponsibility, type ComponentMiddleware } from 'react-chain-of-responsibility';
 import { array, function_, safeParse, type InferOutput } from 'valibot';

@@ -1,4 +1,4 @@
-import { warnOnce } from 'botframework-webchat-core';
+import { warnOnce } from '@msinternal/botframework-webchat-base/utils';
 
 import defaultStyleOptions from './defaultStyleOptions';
 import StyleOptions, { StrictStyleOptions } from './StyleOptions';

@@ -0,0 +1,37 @@
+import warnOnce from './warnOnce';
+
+const PROPERTY_DENYLIST = new Set<string | symbol>([
+  '__defineGetter__',
+  '__defineSetter__',
+  '__lookupGetter__',
+  '__lookupSetter__',
+  '__proto__',
+  'constructor',
+  'hasOwnProperty',
+  'isPrototypeOf',
+  'propertyIsEnumerable',
+  'prototype',
+  'toString',
+  'valueOf'
+]);
+
+export default function deprecateObject<T extends { [key: string | symbol]: any }>(namespace: T, message: string): T {
+  const warnDeprecation = warnOnce(message);
+
+  return new Proxy<T>(namespace, {
+    get(target, p) {
+      if (
+        !PROPERTY_DENYLIST.has(p) &&
+        (typeof p === 'string'
+          ? Object.getOwnPropertyNames(target).includes(p)
+          : Object.getOwnPropertySymbols(target).includes(p))
+      ) {
+        warnDeprecation(p);
+
+        // Only can get own properties.
+        // eslint-disable-next-line security/detect-object-injection
+        return target[p];
+      }
+    }
+  });
+}
@@ -1,2 +1,4 @@
 export { default as createBuildInfo, type BuildInfo, type ReadonlyBuildInfo } from './createBuildInfo';
+export { default as deprecateObject } from './deprecateObject';
+export { default as warnOnce } from './warnOnce';
 export { default as withResolvers, type PromiseWithResolvers } from './withResolvers';
@@ -0,0 +1,10 @@
+export default function once<P extends any[]>(fn: (...args: P) => void): (...args: P) => void {
+  let done = false;
+
+  return (...args) => {
+    if (!done) {
+      fn(...args);
+      done = true;
+    }
+  };
+}
@@ -0,0 +1,5 @@
+import once from './private/once';
+
+export default function warnOnce(message: string): (...args: any[]) => void {
+  return once((...args: any[]) => console.warn(`botframework-webchat: ${message}`, ...args));
+}
@@ -1,10 +1,11 @@
+import { warnOnce } from '@msinternal/botframework-webchat-base/utils';
 import {
   type AttachmentForScreenReaderMiddleware,
   type AttachmentMiddleware,
   type StyleOptions
 } from 'botframework-webchat-api';
 import { type HTMLContentTransformMiddleware } from 'botframework-webchat-component';
-import { singleToArray, warnOnce, type OneOrMany } from 'botframework-webchat-core';
+import { singleToArray, type OneOrMany } from 'botframework-webchat-core';
 import React, { memo, type ReactNode } from 'react';
 
 import AdaptiveCardsComposer from './adaptiveCards/AdaptiveCardsComposer';
@@ -76,4 +77,4 @@ function AddFullBundle({
 
 export default memo(AddFullBundle);
 
-export type { AddFullBundleProps, AddFullBundleChildren };
+export type { AddFullBundleChildren, AddFullBundleProps };
@@ -14,7 +14,23 @@ export {
 // #endregion
 
 // #region Overrides for backward compatibility
-// Web devs should move to named exports instead.
-export * as Components from '../actual/component/full';
-export * as hooks from '../actual/hook/full';
+import { deprecateObject } from '@msinternal/botframework-webchat-base/utils';
+
+import * as hooks from '../actual/hook/full';
+
+const deprecatedHooks = deprecateObject(
+  hooks,
+  "`import { hooks } from 'botframework-webchat'` has been deprecated, use `import { %s } from 'botframework-webchat/hook'` instead."
+) as typeof hooks; // Need explicit type casting.
+
+export { deprecatedHooks as hooks };
+
+import * as Components from '../actual/component/full';
+
+const deprecatedComponents = deprecateObject(
+  Components,
+  "`import { Components } from 'botframework-webchat'` has been deprecated, use `import { %s } from 'botframework-webchat/component'` instead."
+) as typeof Components; // Need explicit type casting.
+
+export { deprecatedComponents as Components };
 // #endregion
@@ -1,10 +1,10 @@
+import { warnOnce } from '@msinternal/botframework-webchat-base/utils';
 import { hooks } from 'botframework-webchat-api';
 import {
   getOrgSchemaMessage,
   OrgSchemaProject,
   parseAction,
   parseClaim,
-  warnOnce,
   type WebChatActivity
 } from 'botframework-webchat-core';
 import classNames from 'classnames';

@@ -42,7 +42,6 @@ import getOrgSchemaMessage from './utils/getOrgSchemaMessage';
 import isForbiddenPropertyName from './utils/isForbiddenPropertyName';
 import onErrorResumeNext from './utils/onErrorResumeNext';
 import singleToArray from './utils/singleToArray';
-import warnOnce from './utils/warnOnce';
 
 export {
   CLEAR_SUGGESTED_ACTIONS,
@@ -126,7 +125,6 @@ export {
   stopDictate,
   stopSpeakingActivity,
   submitSendBox,
-  warnOnce,
   withResolvers
 };