diff --git a/api/@ohos.application.WindowExtensionAbility.d.ts b/api/@ohos.application.WindowExtensionAbility.d.ts
index fe5280f0d4c630f8e9bf8a0f8cf3a5f812afd3a5..9548082f063b45ab8f747803573ddd295899084d 100644
--- a/api/@ohos.application.WindowExtensionAbility.d.ts
+++ b/api/@ohos.application.WindowExtensionAbility.d.ts
@@ -30,7 +30,7 @@ export default class WindowExtensionAbility {
     /**
      * Indicates window extension ability context.
      *
-     * @since 9
+     * @since 10
      * @syscap SystemCapability.WindowManager.WindowManager.Core
      * @systemapi hide for inner use.
      * @StageModelOnly
diff --git a/api/application/WindowExtensionContext.d.ts b/api/application/WindowExtensionContext.d.ts
index 3b28a2312cd8e7ccb68cd00c559fa58279776581..7e06aaefda00b4f8493c61c76b2a28c08d3d04ae 100644
--- a/api/application/WindowExtensionContext.d.ts
+++ b/api/application/WindowExtensionContext.d.ts
@@ -24,7 +24,7 @@ import StartOptions from "../@ohos.app.ability.StartOptions";
  * @syscap SystemCapability.WindowManager.WindowManager.Core
  * @systemapi
  * @stagemodelonly
- * @since 9
+ * @since 10
  */
 export default class WindowExtensionContext extends ExtensionContext {
     /**
@@ -36,7 +36,7 @@ export default class WindowExtensionContext extends ExtensionContext {
      * @syscap SystemCapability.WindowManager.WindowManager.Core
      * @systemapi
      * @stagemodelonly
-     * @since 9
+     * @since 10
      */
     startAbility(want: Want, options: StartOptions, callback: AsyncCallback<void>): void;
 
@@ -49,7 +49,7 @@ export default class WindowExtensionContext extends ExtensionContext {
      * @syscap SystemCapability.WindowManager.WindowManager.Core
      * @systemapi
      * @stagemodelonly
-     * @since 9
+     * @since 10
      */
     startAbility(want: Want, options?: StartOptions): Promise<void>;
 }
\ No newline at end of file