diff --git a/api/@ohos.ability.wantConstant.d.ts b/api/@ohos.ability.wantConstant.d.ts
index c90f0e36abd91dd24651386d90c80dcea0dd41d6..df1fd3a2a5725e1b8bf320d22b7556da055af2bd 100644
--- a/api/@ohos.ability.wantConstant.d.ts
+++ b/api/@ohos.ability.wantConstant.d.ts
@@ -130,14 +130,14 @@ declare namespace wantConstant {
      *
      * @since 8
      */
-     ACTION_IMAGE_CAPTURE = "ohos.want.action.imageCapture",
+    ACTION_IMAGE_CAPTURE = "ohos.want.action.imageCapture",
 
     /**
      * Indicates the action of starting a Page ability for Take a video.
      *
      * @since 8
      */
-     ACTION_VIDEO_CAPTURE = "ohos.want.action.videoCapture",
+    ACTION_VIDEO_CAPTURE = "ohos.want.action.videoCapture",
 
     /**
      * Indicates the action of showing the application selection dialog box.
@@ -217,17 +217,33 @@ declare namespace wantConstant {
     ACTION_APP_ACCOUNT_OAUTH = "ohos.account.appAccount.action.oauth",
 
     /**
-     * Indicates the action of downloading application from application market.
+     * Indicates the action of an application downloaded from the application market.
      *
      * @since 9
      * @systemapi Hide this for inner system use.
      */
-    ACTION_MARKER_DOWNLOAD = "ohos.want.action.marketDownload"
+    ACTION_MARKET_DOWNLOAD = "ohos.want.action.marketDownload",
+
+    /**
+     * Indicates the action of an application disposed from the application market.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    ACTION_MARKET_DISPOSED = "ohos.want.action.marketDisposed",
+
+    /**
+     * Indicates the action of an application crowdtested from the application market.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+     ACTION_MARKET_CROWDTEST = "ohos.want.action.marketCrowdTest"
   }
 
   /**
    * the constant for Entity of the want
-   * @name Action
+   * @name Entity
    * @since 6
    * @syscap SystemCapability.Ability.AbilityBase
    * @permission N/A
@@ -267,6 +283,86 @@ declare namespace wantConstant {
     ENTITY_VIDEO = "entity.system.video"
   }
 
+  /**
+   * the constant for Param of the want
+   * @name Param
+   * @since 9
+   * @syscap SystemCapability.Ability.AbilityBase
+   */
+  export enum Param {
+    /**
+     * Indicates the key of the window mode parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_WINDOW_MODE = "ohos.ability.param.windowMode",
+
+    /**
+     * Indicates the key of the display id parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_DISPLAY_ID = "ohos.ability.param.displayId",
+
+    /**
+     * Indicates the key of the caller token parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_CALLER_TOKEN = "ohos.ability.param.callerToken",
+
+    /**
+     * Indicates the key of the caller uid parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_CALLER_UID = "ohos.ability.param.callerUid",
+
+    /**
+     * Indicates the key of the caller pid parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_CALLER_PID = "ohos.ability.param.callerPid",
+
+    /**
+     * Indicates the key of the start ability for result parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_FOR_RESULT = "ohos.ability.param.startAbilityForResult",
+
+    /**
+     * Indicates the key of the free install calling appId parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_FREEINSTALL_APPID = "ohos.freeinstall.params.callingAppId",
+
+    /**
+     * Indicates the key of the free install calling bundleNames parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_FREEINSTALL_BUNDLENAMES = "ohos.freeinstall.params.callingBundleNames",
+
+    /**
+     * Indicates the key of the free install calling uid parameter.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    PARAM_FREEINSTALL_UID = "ohos.freeinstall.params.callingUid"
+  }
+
   export enum Flags {
     /**
      * Indicates the grant to perform read operations on the URI.
diff --git a/api/@ohos.application.AbilityLifecycleCallback.d.ts b/api/@ohos.application.AbilityLifecycleCallback.d.ts
index 77e747eb78d62338fe0fd3fe9a778b2edc55914d..33db234da5362cd83e943d739ec29e5eb86d02dd 100644
--- a/api/@ohos.application.AbilityLifecycleCallback.d.ts
+++ b/api/@ohos.application.AbilityLifecycleCallback.d.ts
@@ -14,6 +14,8 @@
  */
 
 import Ability from "./@ohos.application.Ability";
+import dataAbility from "./@ohos.data.dataAbility";
+import window from './@ohos.window';
 
 /**
  * The ability lifecycle callback.
@@ -34,24 +36,48 @@ export default class AbilityLifecycleCallback {
     onAbilityCreate(ability: Ability): void;
 
     /**
-     * Called back when an ability window stage is created.
+     * Called back when a window stage is created.
      *
      * @since 9
      * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
      * @param ability: Indicates the ability to register for listening.
+     * @param windowStage window stage to create
      * @StageModelOnly
      */
-    onAbilityWindowStageCreate(ability: Ability): void;
+    onWindowStageCreate(ability: Ability, windowStage: window.WindowStage): void;
  
     /**
-     * Called back when an ability window stage is destroyed.
+     * Called back when a window stage is actived.
      *
      * @since 9
      * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
      * @param ability: Indicates the ability to register for listening.
+     * @param windowStage window stage to active
      * @StageModelOnly
      */
-    onAbilityWindowStageDestroy(ability: Ability): void;
+    onWindowStageActive(ability: Ability, windowStage: window.WindowStage): void;
+
+    /**
+     * Called back when a window stage is inactived.
+     *
+     * @since 9
+     * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
+     * @param ability: Indicates the ability to register for listening.
+     * @param windowStage window stage to inactive
+     * @StageModelOnly
+     */
+    onWindowStageInactive(ability: Ability, windowStage: window.WindowStage): void;
+
+    /**
+     * Called back when a window stage is destroyed.
+     *
+     * @since 9
+     * @syscap SystemCapability.Ability.AbilityRuntime.AbilityCore
+     * @param ability: Indicates the ability to register for listening.
+     * @param windowStage window stage to destroy
+     * @StageModelOnly
+     */
+    onWindowStageDestroy(ability: Ability, windowStage: window.WindowStage): void;
  
     /**
      * Called back when an ability is destroyed.
diff --git a/api/application/ApplicationContext.d.ts b/api/application/ApplicationContext.d.ts
index 2f605c61cf00e4bfa78422ab766a12527bcc5db8..462c3ed8f24341e47a02fb4e4ae24a31d66b6648 100755
--- a/api/application/ApplicationContext.d.ts
+++ b/api/application/ApplicationContext.d.ts
@@ -17,6 +17,7 @@ import { AsyncCallback } from "../basic";
 import Context from "./Context";
 import AbilityLifecycleCallback from "../@ohos.application.AbilityLifecycleCallback";
 import EnvironmentCallback from "../@ohos.application.EnvironmentCallback";
+import AbilityStage from "../@ohos.application.AbilityStage";
 
 /**
  * The context of an application. It allows access to application-specific resources.
@@ -72,4 +73,15 @@ export default class ApplicationContext extends Context {
      */
     unregisterEnvironmentCallback(callbackId: number,  callback: AsyncCallback<void>): void;
     unregisterEnvironmentCallback(callbackId: number): Promise<void>;
+
+    /**
+     * Obtains the Ability Stage.
+     *
+     * @syscap SystemCapability.Ability.AbilityRuntime.Core
+     * @param moduleName Indicates the module name.
+     * @return Returns the Ability Stage.
+     * @since 9
+     * @StageModelOnly
+     */
+    getAbilityStage(moduleName: string): AbilityStage;
 }
diff --git a/api/application/abilityDelegator.d.ts b/api/application/abilityDelegator.d.ts
index 156c222b32410b171b7085f14a30e416f77cfc68..ea5e190ce61ae83ee4f11e0e1e73b2a75a66bae9 100644
--- a/api/application/abilityDelegator.d.ts
+++ b/api/application/abilityDelegator.d.ts
@@ -16,7 +16,7 @@
 import { AsyncCallback } from '../basic';
 import Ability from '../@ohos.application.Ability';
 import { AbilityMonitor } from './abilityMonitor';
-import { Context } from './Context';
+import { ApplicationContext } from "./ApplicationContext";
 import Want from "../@ohos.application.Want";
 import { ShellCmdResult } from './shellCmdResult';
 
@@ -67,9 +67,9 @@ export interface AbilityDelegator {
      *
      * @since 9
      * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @return App Context
+     * @return Returns the Application Context.
      */
-    getAppContext(): Context;
+    getAppContext(): ApplicationContext;
 
     /**
      * Obtain the lifecycle state of a specified ability.