diff --git a/src/client/BaseClient.ts b/src/client/BaseClient.ts
index 17748c2..70a3326 100644
--- a/src/client/BaseClient.ts
+++ b/src/client/BaseClient.ts
@@ -755,6 +755,16 @@ class BaseClient extends EventEmitter {
     >("setChatAdministratorCustomTitle", toSnakeCase(params));
   }
 
+  /** Use this method to set a custom tag for a member of a supergroup. Returns True on success. */
+  async setChatMemberTag(
+    params: MethodParameters["setChatMemberTag"],
+  ): Promise<MethodsLibReturnType["setChatMemberTag"]> {
+    return this.rest.request<true>(
+      "setChatMemberTag",
+      toSnakeCase(params),
+    );
+  }
+
   /** Use this method to ban a channel chat in a supergroup or a channel. Until the chat is unbanned, the owner of the banned chat won't be able to send messages on behalf of any of their channels. The bot must be an administrator in the supergroup or channel for this to work and must have the appropriate administrator rights. Returns True on success. */
   async banChatSenderChat(
     chatId: number | string,
diff --git a/src/client/interfaces/Message.ts b/src/client/interfaces/Message.ts
index e3ee25c..23e3695 100644
--- a/src/client/interfaces/Message.ts
+++ b/src/client/interfaces/Message.ts
@@ -13,7 +13,7 @@ export interface User {
   /** User's or bot's username */
   username?: string;
   /** IETF language tag of the user's language */
-  language_code?: LanguageCode;
+  language_code?: string;
   /** True, if this user is a Telegram Premium user */
   is_premium?: true;
   /** True, if this user added the bot to the attachment menu */
@@ -36,7 +36,7 @@ export interface LinkPreviewOptions {
 
 export declare namespace MessageEntity {
   interface AbstractMessageEntity {
-    /** Type of the entity. Currently, can be “mention” (@username), “hashtag” (#hashtag), “cashtag” ($USD), “bot_command” (/start@jobs_bot), “url” (https://telegram.org), “email” (do-not-reply@telegram.org), “phone_number” (+1-212-555-0123), “bold” (bold text), “italic” (italic text), “underline” (underlined text), “strikethrough” (strikethrough text), “spoiler” (spoiler message), “blockquote” (block quotation), “expandable_blockquote” (collapsed-by-default block quotation), “code” (monowidth string), “pre” (monowidth block), “text_link” (for clickable text URLs), “text_mention” (for users without usernames), “custom_emoji” (for inline custom emoji stickers) */
+    /** Type of the entity. Currently, can be “mention” (@username), “hashtag” (#hashtag), “cashtag” ($USD), “bot_command” (/start@jobs_bot), “url” (https://telegram.org), “email” (do-not-reply@telegram.org), “phone_number” (+1-212-555-0123), “bold” (bold text), “italic” (italic text), “underline” (underlined text), “strikethrough” (strikethrough text), “spoiler” (spoiler message), “blockquote” (block quotation), “expandable_blockquote” (collapsed-by-default block quotation), “code” (monowidth string), “pre” (monowidth block), “text_link” (for clickable text URLs), “text_mention” (for users without usernames), “custom_emoji” (for inline custom emoji stickers), “date_time” (for a formatted date and time) */
     type: string;
     /** Offset in UTF-16 code units to the start of the entity */
     offset: number;
@@ -59,7 +59,8 @@ export declare namespace MessageEntity {
       | "spoiler"
       | "blockquote"
       | "expandable_blockquote"
-      | "code";
+      | "code"
+      | "date_time";
   }
   export interface PreMessageEntity extends AbstractMessageEntity {
     type: "pre";
diff --git a/src/client/interfaces/Methods.ts b/src/client/interfaces/Methods.ts
index e304e4e..81796a4 100644
--- a/src/client/interfaces/Methods.ts
+++ b/src/client/interfaces/Methods.ts
@@ -1195,6 +1195,16 @@ export type ApiMethods = {
     customTitle: string;
   }): true;
 
+  /** Use this method to set a custom tag for a member of a supergroup. The bot must be an administrator in the chat for this to work and must have the appropriate administrator rights. Returns True on success. */
+  setChatMemberTag(args: {
+    /** Unique identifier for the target supergroup (in the format @supergroupusername) */
+    chatId: number | string;
+    /** Unique identifier of the target user */
+    userId: string | number;
+    /** New tag for the member; 0-32 characters */
+    tag?: string;
+  }): true;
+
   /** Use this method to ban a channel chat in a supergroup or a channel. Until the chat is unbanned, the owner of the banned chat won't be able to send messages on behalf of any of their channels. The bot must be an administrator in the supergroup or channel for this to work and must have the appropriate administrator rights. Returns True on success. */
   banChatSenderChat(args: {
     /** Unique identifier for the target chat or username of the target channel (in the format @channelusername) */
diff --git a/src/structures/chat/ChatAdministratorRights.js b/src/structures/chat/ChatAdministratorRights.js
index 558d370..16e81de 100644
--- a/src/structures/chat/ChatAdministratorRights.js
+++ b/src/structures/chat/ChatAdministratorRights.js
@@ -47,6 +47,10 @@ class ChatAdministratorRights {
       permissions.manageTopics = data.can_manage_topics;
     }
 
+    if ("can_manage_tags" in data) {
+      permissions.manageTags = Boolean(data.can_manage_tags);
+    }
+
     /** Represents the rights of an administrator in a chat */
     this.permissions = new ChatPermissions(permissions);
   }
diff --git a/src/structures/chat/ChatMember.js b/src/structures/chat/ChatMember.js
index 72eba9f..1420582 100644
--- a/src/structures/chat/ChatMember.js
+++ b/src/structures/chat/ChatMember.js
@@ -87,6 +87,10 @@ class ChatMember extends Base {
       permissions.manageTopics = data.can_manage_topics;
     }
 
+    if ("can_manage_tags" in data) {
+      permissions.manageTags = Boolean(data.can_manage_tags);
+    }
+
     if ("can_send_messages" in data) {
       permissions.sendMessages = data.can_send_messages;
     }
@@ -127,6 +131,10 @@ class ChatMember extends Base {
       permissions.addWebPagePreviews = data.can_add_web_page_previews;
     }
 
+    if ("can_edit_tag" in data) {
+      permissions.editTag = Boolean(data.can_edit_tag);
+    }
+
     /** Represents the rights of an administrator in a chat */
     this.permissions = new UserPermissions(
       this.status === "creator" ? UserPermissions.Flags : permissions,
@@ -162,6 +170,14 @@ class ChatMember extends Base {
       this.nickName = data.custom_title;
     }
 
+    if ("tag" in data) {
+      /**
+       * Custom tag for this member
+       * @type {string | undefined}
+       */
+      this.tag = typeof data.tag === "string" ? data.tag : undefined;
+    }
+
     if ("is_member" in data) {
       /**
        * True, if the user is a member of the chat at the moment of the request
@@ -335,6 +351,23 @@ class ChatMember extends Base {
     });
   }
 
+  /**
+   * Use this method to set a custom tag for a member of a supergroup.
+   * @param {string} [tag] - New tag for the member; 0-32 characters
+   * @returns {Promise<true>} - Returns True on success.
+   */
+  setTag(tag) {
+    if (!this.id) {
+      throw new TelegramError(ErrorCodes.UserIdNotAvailable);
+    }
+
+    return this.client.setChatMemberTag({
+      chatId: this.chatId,
+      userId: this.id,
+      ...(tag !== undefined && { tag }),
+    });
+  }
+
   /**
    * Checks if this member is equal to another member.
    * @param {ChatMember} other - The other object to compare with.
@@ -353,6 +386,7 @@ class ChatMember extends Base {
       this.user.equals(other.user) &&
       this.anonymous === other.anonymous &&
       this.nickName === other.nickName &&
+      this.tag === other.tag &&
       this.isMember === other.isMember &&
       this.untilUnixTime === other.untilUnixTime
     );
diff --git a/src/structures/message/Message.js b/src/structures/message/Message.js
index cf760bd..66f4faf 100644
--- a/src/structures/message/Message.js
+++ b/src/structures/message/Message.js
@@ -221,6 +221,15 @@ class Message extends Base {
       this.senderBusinessBot = this.client.users._add(data.sender_business_bot);
     }
 
+    if ("sender_tag" in data) {
+      /**
+       * For messages in channels and replies to channel messages in supergroups, the tag of the message sender
+       * @type {string | undefined}
+       */
+      this.senderTag =
+        typeof data.sender_tag === "string" ? data.sender_tag : undefined;
+    }
+
     if ("forward_origin" in data) {
       /**
        * Information about the original message for forwarded messages
diff --git a/src/structures/message/MessageEntities.js b/src/structures/message/MessageEntities.js
index 0d8cf00..39d776d 100644
--- a/src/structures/message/MessageEntities.js
+++ b/src/structures/message/MessageEntities.js
@@ -186,9 +186,17 @@ class MessageEntities extends Base {
     );
   }
 
+  /**
+   * Retrieves all date_time entities from the message.
+   * @returns {import("@telegram.ts/collection").ReadonlyCollection<number, SearchResult>} A collection of date_time entities.
+   */
+  get dateTime() {
+    return this.searchEntity("date_time");
+  }
+
   /**
    * Searches for a specific type of entity in the message.
-   * @param {"mention" | "hashtag" | "cashtag" | "bot_command" | "url" | "email" | "phone_number" | "bold" | "italic" | "underline" | "strikethrough" | "spoiler" | "blockquote" | "code" | "pre" | "text_link" | "text_mention" | "custom_emoji"} searchType - The type of entity to search for.
+   * @param {"mention" | "hashtag" | "cashtag" | "bot_command" | "url" | "email" | "phone_number" | "bold" | "italic" | "underline" | "strikethrough" | "spoiler" | "blockquote" | "code" | "pre" | "text_link" | "text_mention" | "custom_emoji" | "date_time"} searchType - The type of entity to search for.
    * @returns {import("@telegram.ts/collection").ReadonlyCollection<number, SearchResult & ({ language?: import("../../client/interfaces/Language").LanguageCode } | { url: string } | { user: User } | { customEmojiId: string })>} A collection of found entities.
    */
   searchEntity(searchType) {
@@ -218,7 +226,7 @@ class MessageEntities extends Base {
   /**
    * Enables iteration over the message entities.
    * @returns {Generator<(SearchResult & ({ type: "mention" | "hashtag" | "cashtag" | "botCommand" | "url" | "email" |
-      "phoneNumber" | "bold" | "italic" | "underline" | "strikethrough" | "spoiler" | "blockquote" | "code" | { type: "pre", language?: import("../../client/interfaces/Language").LanguageCode } | { type: "text_link", url: string } | { type: "text_mention", user: User } | { type: "customEmoji", customEmojiId: string }}))>} An iterator over the message entities.
+      "phoneNumber" | "bold" | "italic" | "underline" | "strikethrough" | "spoiler" | "blockquote" | "code" | "dateTime" | { type: "pre", language?: import("../../client/interfaces/Language").LanguageCode } | { type: "text_link", url: string } | { type: "text_mention", user: User } | { type: "customEmoji", customEmojiId: string }}))>} An iterator over the message entities.
    */
   *[Symbol.iterator]() {
     /** @type {(keyof MessageEntities)[]} */
@@ -241,6 +249,7 @@ class MessageEntities extends Base {
       "textLink",
       "textMention",
       "customEmoji",
+      "dateTime",
     ];
 
     const allEntities = new Collection();
diff --git a/src/structures/message/MessageOrigin.js b/src/structures/message/MessageOrigin.js
index bbed51f..0feee54 100644
--- a/src/structures/message/MessageOrigin.js
+++ b/src/structures/message/MessageOrigin.js
@@ -310,7 +310,7 @@ class MessageOrigin extends Base {
   /**
    * Use this method to edit a checklist on behalf of a connected business account.
    * @param {string} businessConnectionId - Unique identifier of the business connection on behalf of which the message will be sent.
-   * @param {import("@telegram.ts/types").InputChecklist} checklist - An object for the new checklist.
+   * @param {import("../../client/interfaces/Checklist").InputChecklist} checklist - An object for the new checklist.
    * @param {Omit<MethodParameters["editMessageChecklist"], "messageId" | "chatId" | "checklist" | "businessConnectionId">} [options] - out parameters.
    * @returns {Promise<import("./Message").Message & { checklist: import("../checklist/Checklist").Checklist }>} - On success, the edited Message is returned.
    */
diff --git a/src/structures/misc/User.js b/src/structures/misc/User.js
index 3afa992..565314e 100644
--- a/src/structures/misc/User.js
+++ b/src/structures/misc/User.js
@@ -1,10 +1,6 @@
 // @ts-check
 const { Base } = require("../Base");
 
-/**
- * @typedef {import("../../client/interfaces/Language").LanguageCode} LanguageCode
- */
-
 /**
  * @typedef {import("../../types").MethodParameters} MethodParameters
  */
@@ -55,7 +51,7 @@ class User extends Base {
     if ("language_code" in data) {
       /**
        * IETF language tag of the user's language
-       * @type {LanguageCode | undefined}
+       * @type {string | undefined}
        */
       this.language = data.language_code;
     }
diff --git a/src/util/permission/ApiPermissions.ts b/src/util/permission/ApiPermissions.ts
index d31e048..2ae056e 100644
--- a/src/util/permission/ApiPermissions.ts
+++ b/src/util/permission/ApiPermissions.ts
@@ -25,6 +25,9 @@ const ApiPermissionsFlags = {
   editStories: "can_edit_stories",
   deleteStories: "can_delete_stories",
   manageTopics: "can_manage_topics",
+  manageTags: "can_manage_tags",
+  editTag: "can_edit_tag",
+  manageDirectMessages: "can_manage_direct_messages",
 } as const;
 
 /**
diff --git a/src/util/permission/ChatPermissions.ts b/src/util/permission/ChatPermissions.ts
index f018372..9bb879c 100644
--- a/src/util/permission/ChatPermissions.ts
+++ b/src/util/permission/ChatPermissions.ts
@@ -3,6 +3,7 @@
  */
 type ChatPermissionString =
   | "isAnonymous"
+  | "editTag"
   | "sendMessages"
   | "sendAudios"
   | "sendDocuments"
@@ -17,6 +18,7 @@ type ChatPermissionString =
   | "inviteUsers"
   | "pinMessages"
   | "manageTopics"
+  | "manageTags"
   | "manageDirectMessages";
 
 /**
@@ -24,6 +26,7 @@ type ChatPermissionString =
  */
 interface ChatPermissionFlags {
   isAnonymous?: boolean;
+  editTag?: boolean;
   sendMessages?: boolean;
   sendAudios?: boolean;
   sendDocuments?: boolean;
@@ -38,6 +41,7 @@ interface ChatPermissionFlags {
   inviteUsers?: boolean;
   pinMessages?: boolean;
   manageTopics?: boolean;
+  manageTags?: boolean;
   manageDirectMessages?: boolean;
 }
 
@@ -194,8 +198,10 @@ class ChatPermissions {
     inviteUsers: 12,
     pinMessages: 13,
     manageTopics: 14,
-    manageDirectMessages: 15,
-    isAnonymous: 16,
+    manageTags: 15,
+    manageDirectMessages: 16,
+    isAnonymous: 17,
+    editTag: 18,
   };
 }
 
diff --git a/src/util/permission/UserPermissions.ts b/src/util/permission/UserPermissions.ts
index 882f9cb..a0d3bdc 100644
--- a/src/util/permission/UserPermissions.ts
+++ b/src/util/permission/UserPermissions.ts
@@ -16,6 +16,7 @@ type UserPermissionString =
   | "editMessages"
   | "pinMessages"
   | "manageTopics"
+  | "manageTags"
   | "manageDirectMessages";
 
 /**
@@ -36,6 +37,7 @@ interface UserPermissionFlags {
   editMessages?: boolean;
   pinMessages?: boolean;
   manageTopics?: boolean;
+  manageTags?: boolean;
   manageDirectMessages?: boolean;
 }
 
@@ -192,7 +194,8 @@ class UserPermissions {
     editMessages: 12,
     pinMessages: 13,
     manageTopics: 14,
-    manageDirectMessages: 15,
+    manageTags: 15,
+    manageDirectMessages: 16,
   };
 }
 
diff --git a/typings/index.d.ts b/typings/index.d.ts
index e7707ed..8a530cc 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -93,6 +93,7 @@ import {
  */
 export type ChatPermissionString =
   | "isAnonymous"
+  | "editTag"
   | "sendMessages"
   | "sendAudios"
   | "sendDocuments"
@@ -107,6 +108,7 @@ export type ChatPermissionString =
   | "inviteUsers"
   | "pinMessages"
   | "manageTopics"
+  | "manageTags"
   | "manageDirectMessages";
 
 /**
@@ -114,6 +116,7 @@ export type ChatPermissionString =
  */
 export interface ChatPermissionFlags {
   isAnonymous?: boolean;
+  editTag?: boolean;
   sendMessages?: boolean;
   sendAudios?: boolean;
   sendDocuments?: boolean;
@@ -128,6 +131,7 @@ export interface ChatPermissionFlags {
   inviteUsers?: boolean;
   pinMessages?: boolean;
   manageTopics?: boolean;
+  manageTags?: boolean;
   manageDirectMessages?: boolean;
 }
 
@@ -544,7 +548,7 @@ export declare class User extends Base {
   /**
    * IETF language tag of the user's language
    */
-  language?: LanguageCode;
+  language?: string;
   /**
    * True, if this user is a Telegram Premium user
    */
@@ -940,6 +944,7 @@ export type UserPermissionString =
   | "editMessages"
   | "pinMessages"
   | "manageTopics"
+  | "manageTags"
   | "manageDirectMessages";
 
 /**
@@ -960,6 +965,7 @@ export interface UserPermissionFlags {
   editMessages?: boolean;
   pinMessages?: boolean;
   manageTopics?: boolean;
+  manageTags?: boolean;
   manageDirectMessages?: boolean;
 }
 
@@ -1563,7 +1569,13 @@ export declare class MessageEntities extends Base {
   get customEmoji(): ReadonlyCollection<
     number,
     SearchResult & { customEmojiId: string }
-  >; /**
+  >;
+  /**
+   * Retrieves all date_time entities from the message.
+   * @returns A collection of date_time entities.
+   */
+  get dateTime(): ReadonlyCollection<number, SearchResult>;
+  /**
    * Searches for a specific type of entity in the message.
    * @param searchType - The type of entity to search for.
    * @returns A collection of found entities.
@@ -1587,7 +1599,8 @@ export declare class MessageEntities extends Base {
       | "pre"
       | "text_link"
       | "text_mention"
-      | "custom_emoji",
+      | "custom_emoji"
+      | "date_time",
   ): ReadonlyCollection<
     number,
     SearchResult &
@@ -1618,7 +1631,8 @@ export declare class MessageEntities extends Base {
         | "strikethrough"
         | "spoiler"
         | "blockquote"
-        | "code";
+        | "code"
+        | "dateTime";
     } & (
         | { type: "pre"; language?: LanguageCode }
         | { type: "textLink"; url: string }
@@ -6447,6 +6461,10 @@ export declare class Message extends Base {
    * The bot that actually sent the message on behalf of the business account. Available only for outgoing messages sent on behalf of the connected business account.
    */
   senderBusinessBot?: User;
+  /**
+   * For messages in channels and replies to channel messages in supergroups, the tag of the message sender
+   */
+  senderTag?: string;
   /**
    * Information about the original message for forwarded messages
    */
@@ -8940,6 +8958,10 @@ export declare class ChatMember extends Base {
    * Custom title for this user
    */
   nickName?: string;
+  /**
+   * Custom tag for this member
+   */
+  tag?: string;
   /**
    * True, if the user is a member of the chat at the moment of the request
    */
@@ -9040,6 +9062,12 @@ export declare class ChatMember extends Base {
    * @returns Returns True on success.
    */
   setNikeName(name: string): Promise<true>;
+  /**
+   * Use this method to set a custom tag for a member of a supergroup.
+   * @param tag - New tag for the member; 0-32 characters
+   * @returns Returns True on success.
+   */
+  setTag(tag?: string): Promise<true>;
   /**
    * Checks if this member is equal to another member.
    * @param other - The other object to compare with.
@@ -10310,6 +10338,10 @@ export declare class BaseClient extends EventEmitter {
   setChatAdministratorCustomTitle(
     params: MethodParameters["setChatAdministratorCustomTitle"],
   ): Promise<MethodsLibReturnType["setChatAdministratorCustomTitle"]>;
+  /** Use this method to set a custom tag for a member of a supergroup. Returns True on success. */
+  setChatMemberTag(
+    params: MethodParameters["setChatMemberTag"],
+  ): Promise<MethodsLibReturnType["setChatMemberTag"]>;
   /** Use this method to ban a channel chat in a supergroup or a channel. Until the chat is unbanned, the owner of the banned chat won't be able to send messages on behalf of any of their channels. The bot must be an administrator in the supergroup or channel for this to work and must have the appropriate administrator rights. Returns True on success. */
   banChatSenderChat(
     chatId: number | string,
diff --git a/typings/telegram/Message.d.ts b/typings/telegram/Message.d.ts
index e3ee25c..23e3695 100644
--- a/typings/telegram/Message.d.ts
+++ b/typings/telegram/Message.d.ts
@@ -13,7 +13,7 @@ export interface User {
   /** User's or bot's username */
   username?: string;
   /** IETF language tag of the user's language */
-  language_code?: LanguageCode;
+  language_code?: string;
   /** True, if this user is a Telegram Premium user */
   is_premium?: true;
   /** True, if this user added the bot to the attachment menu */
@@ -36,7 +36,7 @@ export interface LinkPreviewOptions {
 
 export declare namespace MessageEntity {
   interface AbstractMessageEntity {
-    /** Type of the entity. Currently, can be “mention” (@username), “hashtag” (#hashtag), “cashtag” ($USD), “bot_command” (/start@jobs_bot), “url” (https://telegram.org), “email” (do-not-reply@telegram.org), “phone_number” (+1-212-555-0123), “bold” (bold text), “italic” (italic text), “underline” (underlined text), “strikethrough” (strikethrough text), “spoiler” (spoiler message), “blockquote” (block quotation), “expandable_blockquote” (collapsed-by-default block quotation), “code” (monowidth string), “pre” (monowidth block), “text_link” (for clickable text URLs), “text_mention” (for users without usernames), “custom_emoji” (for inline custom emoji stickers) */
+    /** Type of the entity. Currently, can be “mention” (@username), “hashtag” (#hashtag), “cashtag” ($USD), “bot_command” (/start@jobs_bot), “url” (https://telegram.org), “email” (do-not-reply@telegram.org), “phone_number” (+1-212-555-0123), “bold” (bold text), “italic” (italic text), “underline” (underlined text), “strikethrough” (strikethrough text), “spoiler” (spoiler message), “blockquote” (block quotation), “expandable_blockquote” (collapsed-by-default block quotation), “code” (monowidth string), “pre” (monowidth block), “text_link” (for clickable text URLs), “text_mention” (for users without usernames), “custom_emoji” (for inline custom emoji stickers), “date_time” (for a formatted date and time) */
     type: string;
     /** Offset in UTF-16 code units to the start of the entity */
     offset: number;
@@ -59,7 +59,8 @@ export declare namespace MessageEntity {
       | "spoiler"
       | "blockquote"
       | "expandable_blockquote"
-      | "code";
+      | "code"
+      | "date_time";
   }
   export interface PreMessageEntity extends AbstractMessageEntity {
     type: "pre";
diff --git a/typings/telegram/Methods.d.ts b/typings/telegram/Methods.d.ts
index b160575..564771c 100644
--- a/typings/telegram/Methods.d.ts
+++ b/typings/telegram/Methods.d.ts
@@ -1194,6 +1194,15 @@ export type ApiMethods = {
     /** New custom title for the administrator; 0-16 characters, emoji are not allowed */
     customTitle: string;
   }): true;
+  /** Use this method to set a custom tag for a member of a supergroup. The bot must be an administrator in the chat for this to work and must have the appropriate administrator rights. Returns True on success. */
+  setChatMemberTag(args: {
+    /** Unique identifier for the target supergroup (in the format @supergroupusername) */
+    chatId: number | string;
+    /** Unique identifier of the target user */
+    userId: string | number;
+    /** New tag for the member; 0-32 characters */
+    tag?: string;
+  }): true;
 
   /** Use this method to ban a channel chat in a supergroup or a channel. Until the chat is unbanned, the owner of the banned chat won't be able to send messages on behalf of any of their channels. The bot must be an administrator in the supergroup or channel for this to work and must have the appropriate administrator rights. Returns True on success. */
   banChatSenderChat(args: {