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+# 帐号子系统ChangeLog
+
+## cl.account_os_account.1 域插件查询帐号信息接口变更
+
+域插件查询帐号信息接口getAccountInfo变更，为提高接参数的可扩展性，将原来的方法中的指定类型入参，替换为可扩展类型（GetDomainAccountInfoPluginOptions）入参。
+
+**变更影响**
+
+开发者需要适配新的入参类型，否则将导致编译失败。适配方式请参考下文示例代码。
+
+**关键接口/组件变更**
+
+变更前：
+
+```js
+  interface DomainPlugin {
+    ...
+    getAccountInfo(domain: string, accountName: string, callback: AsyncCallback<DomainAccountInfo>): void;
+    ...
+  }
+```
+
+变更后：
+```js
+  interface DomainPlugin {
+    ...
+    getAccountInfo(options: GetDomainAccountInfoPluginOptions, callback: AsyncCallback<DomainAccountInfo>): void;
+    ...
+  }
+```
+
+**适配指导**
+
+接口入参修改为指定GetDomainAccountInfoPluginOptions类型，示例代码如下。
+
+```js
+  let plugin: account_osAccount.DomainPlugin = {
+  auth: (domainAccountInfo: account_osAccount.DomainAccountInfo, credential: Uint8Array,
+        callback: account_osAccount.IUserAuthCallback) => {},
+  authWithPopup: (domainAccountInfo: account_osAccount.DomainAccountInfo,
+                  callback: account_osAccount.IUserAuthCallback) => {},
+  authWithToken: (domainAccountInfo: account_osAccount.DomainAccountInfo, token: Uint8Array,
+                  callback: account_osAccount.IUserAuthCallback) => {},
+  getAccountInfo: (options: account_osAccount.GetDomainAccountInfoPluginOptions, // 接口入参变更
+                  callback: AsyncCallback<account_osAccount.DomainAccountInfo>) => {
+    // mock getting account information
+    // notify result
+    let code: BusinessError = {
+      code: 0,
+      name: "",
+      message: ""
+    };
+    let accountInfo: account_osAccount.DomainAccountInfo = {
+      domain: options.domain, // 入参读取方式
+      accountName: options.accountName, // 入参读取方式
+      accountId: 'xxxx'
+    };
+    callback(code, accountInfo);
+  },
+  getAuthStatusInfo: (domainAccountInfo: account_osAccount.DomainAccountInfo,
+                      callback: AsyncCallback<account_osAccount.AuthStatusInfo>) => {},
+  bindAccount: (domainAccountInfo: account_osAccount.DomainAccountInfo, localId: number,
+                callback: AsyncCallback<void>) => {},
+  unbindAccount: (domainAccountInfo: account_osAccount.DomainAccountInfo, callback: AsyncCallback<void>) => {},
+  isAccountTokenValid: (domainAccountInfo: account_osAccount.DomainAccountInfo, token: Uint8Array,
+                        callback: AsyncCallback<boolean>) => {},
+  getAccessToken: (options: account_osAccount.GetDomainAccessTokenOptions, callback: AsyncCallback<Uint8Array>) => {}
+}
+  account_osAccount.DomainAccountManager.registerPlugin(plugin)
+```