diff --git a/api/@ohos.contact.d.ts b/api/@ohos.contact.d.ts
index 8242ea2aa908223940061fe16f7ff3421e38f5e7..6b3da54f25bcb912a9e7398e5b6323caccf7e657 100644
--- a/api/@ohos.contact.d.ts
+++ b/api/@ohos.contact.d.ts
@@ -26,7 +26,7 @@ declare namespace contact {
   /**
    * Creates a contact.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.WRITE_CONTACTS}
    *
    * @param contact Indicates the contact information.
    * @return Returns the contact ID (which can be obtained by {@link Contact#getId()}) if the creation is successful;
@@ -35,10 +35,22 @@ declare namespace contact {
   function addContact(contact: Contact, callback: AsyncCallback<number>): void;
   function addContact(contact: Contact): Promise<number>;
 
+  /**
+   * Select contact.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
+   *
+   * @return Returns the contact list which user select;
+   * returns empty contact list if user not select.
+   * @syscap SystemCapability.Applications.ContactsData, SystemCapability.Applications.Contacts
+   */
+  function selectContact(callback: AsyncCallback<Array<Contact>>): void;
+  function selectContact(): Promise<Array<Contact>>;
+
   /**
    * Deletes a specified contact.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.WRITE_CONTACTS}
    *
    * @param key Indicates the unique query key of a contact to delete.
    * @return Returns {@code true} if the contact is deleted; returns {@code false} otherwise.
@@ -49,7 +61,7 @@ declare namespace contact {
   /**
    * Queries a specified contact of specified attributes.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @param key Indicates the unique query key of a contact.
    * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
@@ -65,7 +77,7 @@ declare namespace contact {
   /**
    * Queries contacts with query conditions.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
    * @param attrs Indicates the contact attributes. If this parameter is null, all attributes are used for matching.
@@ -80,7 +92,7 @@ declare namespace contact {
   /**
    * Queries contacts by a specified email address, contact holder, and contact attributes.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @param email Indicates the email address.
    * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
@@ -96,7 +108,7 @@ declare namespace contact {
   /**
    * Queries contacts by a phone number, holder, and contact attribute.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}.
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @param phoneNumber Indicates the phone number. Only full match is supported, and wildcards are not supported.
    * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
@@ -113,7 +125,7 @@ declare namespace contact {
   /**
    * Queries contact groups.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
    * @return Returns the contact group list.
@@ -125,7 +137,7 @@ declare namespace contact {
   /**
    * Queries contact holders.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @return Returns the {@code Holder} list object.
    */
@@ -135,7 +147,7 @@ declare namespace contact {
   /**
    * Obtains the query key of a contact based on a specified ID and holder.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @param id Indicates the contact ID.
    * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
@@ -148,7 +160,7 @@ declare namespace contact {
   /**
    * Queries information about "my card".
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @param attrs Indicates the contact attributes. If this parameter is null, all attributes are used for matching.
    * @return Returns information about "my card".
@@ -160,7 +172,7 @@ declare namespace contact {
   /**
    * Updates specified attributes of a contact.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.WRITE_CONTACTS}
    *
    * @param contact Indicates the contact whose information is to update.
    * @param attrs Indicates the contact attributes to update. If this parameter is null,
@@ -174,7 +186,7 @@ declare namespace contact {
   /**
    * Checks whether the contact ID is in the local phone book.
    *
-   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
    *
    * @param id Indicates the contact ID.
    * @return Returns {@code true} if the contact ID is in the local phone book; returns {@code false} otherwise.
@@ -185,6 +197,8 @@ declare namespace contact {
   /**
    * Checks whether the contact ID is of "my card".
    *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS}
+   *
    * @param id Indicates the contact ID.
    * @return Returns {@code true} if the contact ID is of "my card"; returns {@code false} otherwise.
    */
diff --git a/api/@ohos.net.connection.d.ts b/api/@ohos.net.connection.d.ts
index 3ff974a7558c559153b9f2c6c1ff02df4843297e..243336d3ee61ad3cf734f6ff5851f2ee2286ab85 100644
--- a/api/@ohos.net.connection.d.ts
+++ b/api/@ohos.net.connection.d.ts
@@ -170,16 +170,6 @@ declare namespace connection {
   export interface NetHandle {
     netId: number;
 
-    /**
-     * Binds a TCPSocket or UDPSocket to the current network. All data flows from
-     * the socket will use this network, without being subject to {@link setAppNet}.
-     * Before using this method, ensure that the socket is disconnected.
-     *
-     * @param socketParam Indicates the TCPSocket or UDPSocket object.
-     */
-    bindSocket(socketParam: TCPSocket | UDPSocket, callback: AsyncCallback<void>): void;
-    bindSocket(socketParam: TCPSocket | UDPSocket): Promise<void>;
-
     /**
      * Resolves a host name to obtain all IP addresses based on the specified NetHandle.
      *
@@ -272,9 +262,6 @@ declare namespace connection {
     prefixLength: number;
   }
 
-  /**
-   * @since 7
-   */
   export interface NetAddress {
     address: string;
     family?: number; // IPv4 = 1; IPv6 = 2, default is IPv4
diff --git a/api/@ohos.telephony.observer.d.ts b/api/@ohos.telephony.observer.d.ts
index 8193aca0556d6a93da396099949fda566c6e06a1..29d749abd6a8e8c2cf0ba283b826bcc701e223d2 100644
--- a/api/@ohos.telephony.observer.d.ts
+++ b/api/@ohos.telephony.observer.d.ts
@@ -107,6 +107,9 @@ declare namespace observer {
   function on(type: 'cellularDataConnectionStateChange', options: { slotId: number },
     callback: Callback<{ state: DataConnectState, network: RatType }>): void;
 
+  /**
+   * @since 7
+   */
   function off(type: 'cellularDataConnectionStateChange',
     callback?: Callback<{ state: DataConnectState, network: RatType }>): void;
 
@@ -123,6 +126,9 @@ declare namespace observer {
   function on(type: 'cellularDataFlowChange', options: { slotId: number },
     callback: Callback<DataFlowType>): void;
 
+  /**
+   * @since 7
+   */
   function off(type: 'cellularDataFlowChange', callback?: Callback<DataFlowType>): void;
 
   /**
@@ -156,6 +162,9 @@ declare namespace observer {
   function on(type: 'simStateChange', callback: Callback<SimStateData>): void;
   function on(type: 'simStateChange', options: { slotId: number }, callback: Callback<SimStateData>): void;
 
+  /**
+   * @since 7
+   */
   function off(type: 'simStateChange', callback?: Callback<SimStateData>): void;
 
   /**