diff --git a/api/@ohos.app.ability.ChildProcess.d.ts b/api/@ohos.app.ability.ChildProcess.d.ts
index 7b9f0f61064d08ad3be12e424894c2351ac7e60f..f49b31741c03f37779ec63d4d809b58e8d90d7f9 100644
--- a/api/@ohos.app.ability.ChildProcess.d.ts
+++ b/api/@ohos.app.ability.ChildProcess.d.ts
@@ -26,16 +26,18 @@ import type { ChildProcessArgs } from './@ohos.app.ability.ChildProcessArgs';
  *
  * @syscap SystemCapability.Ability.AbilityRuntime.Core
  * @stagemodelonly
- * @since 11
+ * @since arkts {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
-export default class ChildProcess {
+declare class ChildProcess {
 
   /**
    * Called when the child process is started.
    *
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
   */
   /**
    * Called when the child process is started.
@@ -43,7 +45,9 @@ export default class ChildProcess {
    * @param { ChildProcessArgs } [args] - Indicates args passed to child process.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 12
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
   */
   onStart(args?: ChildProcessArgs): void;
-}
\ No newline at end of file
+}
+export default ChildProcess;
\ No newline at end of file
diff --git a/api/@ohos.app.ability.ChildProcessArgs.d.ts b/api/@ohos.app.ability.ChildProcessArgs.d.ts
index 95fbe68e3cbd751a535a66bc4dfb238e6b867bfc..4c1cf03617ba84495d036ff7b755d0136399385c 100644
--- a/api/@ohos.app.ability.ChildProcessArgs.d.ts
+++ b/api/@ohos.app.ability.ChildProcessArgs.d.ts
@@ -24,7 +24,8 @@
  * @interface ChildProcessArgs
  * @syscap SystemCapability.Ability.AbilityRuntime.Core
  * @stagemodelonly
- * @since 12
+ * @since arkts {'1.1':'12', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 export interface ChildProcessArgs {
   /**
@@ -34,7 +35,8 @@ export interface ChildProcessArgs {
    * @type { ?string }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 12
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   entryParams?: string;
 
@@ -44,7 +46,8 @@ export interface ChildProcessArgs {
    * @type { ?Record<string, number> }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 12
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   fds?: Record<string, number>;
 }
\ No newline at end of file
diff --git a/api/@ohos.app.ability.ChildProcessOptions.d.ts b/api/@ohos.app.ability.ChildProcessOptions.d.ts
index e1b13c5625c2ede7cb9485c07bb6bd5f8532d1b7..4703b00ca3a0f128a8a985759eb581e79f2ecf0c 100644
--- a/api/@ohos.app.ability.ChildProcessOptions.d.ts
+++ b/api/@ohos.app.ability.ChildProcessOptions.d.ts
@@ -24,7 +24,8 @@
  * @interface ChildProcessOptions
  * @syscap SystemCapability.Ability.AbilityRuntime.Core
  * @stagemodelonly
- * @since 12
+ * @since arkts {'1.1':'12', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 export interface ChildProcessOptions {
   /**
@@ -33,7 +34,8 @@ export interface ChildProcessOptions {
    * @type { ?boolean }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 12
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   isolationMode?: boolean;
 }
\ No newline at end of file
diff --git a/api/@ohos.app.ability.childProcessManager.d.ts b/api/@ohos.app.ability.childProcessManager.d.ts
index 1e5c9ca12edb1088d21c607bf4a859dd5ec6001b..8748527aef623742cafa45ae24c5f3c76ebf2e73 100644
--- a/api/@ohos.app.ability.childProcessManager.d.ts
+++ b/api/@ohos.app.ability.childProcessManager.d.ts
@@ -27,7 +27,8 @@ import type { ChildProcessOptions } from './@ohos.app.ability.ChildProcessOption
  *
  * @namespace childProcessManager
  * @syscap SystemCapability.Ability.AbilityRuntime.Core
- * @since 11
+ * @since arkts {'1.1':'11', '1.2':'20'}
+ * @arkts 1.1&1.2
  */
 declare namespace childProcessManager {
 
@@ -37,7 +38,8 @@ declare namespace childProcessManager {
    * @enum { number }
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   export const enum StartMode {
 
@@ -47,7 +49,8 @@ declare namespace childProcessManager {
      *
      * @syscap SystemCapability.Ability.AbilityRuntime.Core
      * @stagemodelonly
-     * @since 11
+     * @since arkts {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
      */
     SELF_FORK = 0,
 
@@ -56,7 +59,8 @@ declare namespace childProcessManager {
      *
      * @syscap SystemCapability.Ability.AbilityRuntime.Core
      * @stagemodelonly
-     * @since 11
+     * @since arkts {'1.1':'11', '1.2':'20'}
+     * @arkts 1.1&1.2
      */
     APP_SPAWN_FORK = 1,
   }
@@ -74,7 +78,8 @@ declare namespace childProcessManager {
    * @throws { BusinessError } 16000062 - The number of child processes exceeds the upper limit.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function startChildProcess(srcEntry: string, startMode: StartMode): Promise<number>;
 
@@ -91,7 +96,8 @@ declare namespace childProcessManager {
    * @throws { BusinessError } 16000062 - The number of child processes exceeds the upper limit.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 11
+   * @since arkts {'1.1':'11', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function startChildProcess(srcEntry: string, startMode: StartMode, callback: AsyncCallback<number>): void;
 
@@ -109,7 +115,8 @@ declare namespace childProcessManager {
    * @throws { BusinessError } 16000061 - Operation not supported. The API cannot be called in a child process.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 12
+   * @since arkts {'1.1':'12', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   /** 
    * Start child process with the given args and options.
@@ -126,7 +133,8 @@ declare namespace childProcessManager {
    * @throws { BusinessError } 16000062 - The number of child processes exceeds the upper limit.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 13
+   * @since arkts {'1.1':'13', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function startArkChildProcess(srcEntry: string, args: ChildProcessArgs, options?: ChildProcessOptions): Promise<number>;
 
@@ -145,7 +153,8 @@ declare namespace childProcessManager {
    * @throws { BusinessError } 16000062 - The number of child processes exceeds the upper limit.
    * @syscap SystemCapability.Ability.AbilityRuntime.Core
    * @stagemodelonly
-   * @since 13
+   * @since arkts {'1.1':'13', '1.2':'20'}
+   * @arkts 1.1&1.2
    */
   function startNativeChildProcess(entryPoint: string, args: ChildProcessArgs, options?: ChildProcessOptions): Promise<number>;