diff --git a/docs/swagger.json b/docs/swagger.json
index 1957f60..a33ea0a 100644
--- a/docs/swagger.json
+++ b/docs/swagger.json
@@ -4656,4 +4656,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/src/Enums/ChatAdminPermission.php b/src/Enums/ChatAdminPermission.php
index 2357fa9..609d231 100644
--- a/src/Enums/ChatAdminPermission.php
+++ b/src/Enums/ChatAdminPermission.php
@@ -15,4 +15,5 @@ enum ChatAdminPermission: string
     case ChangeChatInfo = 'change_chat_info';
     case PinMessage = 'pin_message';
     case Write = 'write';
+    case EditLink = 'edit_link';
 }
diff --git a/src/ModelFactory.php b/src/ModelFactory.php
index 15223e4..3e8f482 100644
--- a/src/ModelFactory.php
+++ b/src/ModelFactory.php
@@ -15,6 +15,7 @@ use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\AbstractInlin
 use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\CallbackButton;
 use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\ChatButton;
 use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\LinkButton;
+use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\MessageButton;
 use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\OpenAppButton;
 use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\RequestContactButton;
 use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\RequestGeoLocationButton;
@@ -311,6 +312,7 @@ readonly class ModelFactory
             InlineButtonType::RequestGeoLocation => RequestGeoLocationButton::fromArray($data),
             InlineButtonType::Chat => ChatButton::fromArray($data),
             InlineButtonType::OpenApp => OpenAppButton::fromArray($data),
+            InlineButtonType::Message => MessageButton::fromArray($data),
             default => throw new LogicException(
                 'Unknown or unsupported inline button type: ' . ($data['type'] ?? 'none')
             ),
diff --git a/src/Models/Attachments/Buttons/Inline/MessageButton.php b/src/Models/Attachments/Buttons/Inline/MessageButton.php
new file mode 100644
index 0000000..c2746bc
--- /dev/null
+++ b/src/Models/Attachments/Buttons/Inline/MessageButton.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline;
+
+use BushlanovDev\MaxMessengerBot\Enums\InlineButtonType;
+
+/**
+ * Button send text in chat from user.
+ */
+final readonly class MessageButton extends AbstractInlineButton
+{
+    /**
+     * @param string $text Text sending in chat from user.
+     */
+    public function __construct(string $text)
+    {
+        parent::__construct(InlineButtonType::Message, $text);
+    }
+}
diff --git a/src/Models/BotPatch.php b/src/Models/BotPatch.php
index dd74760..c9cce1a 100644
--- a/src/Models/BotPatch.php
+++ b/src/Models/BotPatch.php
@@ -9,12 +9,14 @@ use BushlanovDev\MaxMessengerBot\Models\Attachments\Payloads\PhotoAttachmentRequ
 /**
  * Represents the data to patch for a bot. Instantiate with named arguments.
  *
- * Example: new BotPatch(name: 'New Bot Name', description: null);
+ * Example: new BotPatch(first_name: 'New Bot Name', description: null);
  *
- * @property-read string|null $name
+ * @property-read string|null $first_name
+ * @property-read string|null $last_name
  * @property-read string|null $description
  * @property-read BotCommand[]|null $commands
  * @property-read PhotoAttachmentRequestPayload|null $photo
+ * @property-read string|null $name @deprecated Use first_name
  */
 final readonly class BotPatch extends AbstractPatchModel
 {
diff --git a/src/Models/Chat.php b/src/Models/Chat.php
index a195784..ee8110e 100644
--- a/src/Models/Chat.php
+++ b/src/Models/Chat.php
@@ -28,6 +28,7 @@ final readonly class Chat extends AbstractModel
      * @param int|null $messagesCount Messages count in chat. Only for group chats and channels. Not available for dialogs.
      * @param string|null $chatMessageId Identifier of message that contains `chat` button initialized chat.
      * @param Message|null $pinnedMessage Pinned message in chat or channel. Returned only when single chat is requested.
+     * @param array<string, int>|null $participants List of participants in chat. Returned only when single chat is requested.
      */
     public function __construct(
         public int $chatId,
@@ -45,6 +46,7 @@ final readonly class Chat extends AbstractModel
         public ?int $messagesCount,
         public ?string $chatMessageId,
         public ?Message $pinnedMessage,
+        public ?array $participants,
     ) {
     }
 }
diff --git a/src/Models/ChatAdmin.php b/src/Models/ChatAdmin.php
index 03ceaa8..3c264f4 100644
--- a/src/Models/ChatAdmin.php
+++ b/src/Models/ChatAdmin.php
@@ -15,11 +15,13 @@ final readonly class ChatAdmin extends AbstractModel
     /**
      * @param int $userId The identifier of the user to be made an admin.
      * @param ChatAdminPermission[] $permissions The list of permissions to grant to the user.
+     * @param string|null $alias Alias of the user.
      */
     public function __construct(
         public int $userId,
         #[ArrayOf(ChatAdminPermission::class)]
         public array $permissions,
+        public ?string $alias = null,
     ) {
     }
 }
diff --git a/src/Models/ChatMember.php b/src/Models/ChatMember.php
index a9cf1a4..c6ad0d3 100644
--- a/src/Models/ChatMember.php
+++ b/src/Models/ChatMember.php
@@ -27,6 +27,7 @@ final readonly class ChatMember extends AbstractModel
      * @param bool $isAdmin True if this member is an administrator of the chat.
      * @param int $joinTime The time the user joined the chat.
      * @param ChatAdminPermission[]|null $permissions A list of permissions if the member is an admin, otherwise null.
+     * @param string|null $alias Alias of the user.
      */
     public function __construct(
         public int $userId,
@@ -44,6 +45,7 @@ final readonly class ChatMember extends AbstractModel
         public int $joinTime,
         #[ArrayOf(ChatAdminPermission::class)]
         public ?array $permissions,
+        public ?string $alias,
     ) {
     }
 }
diff --git a/tests/ApiTest.php b/tests/ApiTest.php
index eca9644..0cf28fa 100644
--- a/tests/ApiTest.php
+++ b/tests/ApiTest.php
@@ -1671,8 +1671,8 @@ final class ApiTest extends TestCase
 
         $expectedBody = [
             'admins' => [
-                ['user_id' => 101, 'permissions' => ['write']],
-                ['user_id' => 202, 'permissions' => ['pin_message']],
+                ['user_id' => 101, 'permissions' => ['write'], 'alias' => null],
+                ['user_id' => 202, 'permissions' => ['pin_message'], 'alias' => null],
             ],
         ];
         $rawResponse = ['success' => true];
diff --git a/tests/ModelFactoryTest.php b/tests/ModelFactoryTest.php
index 84f819d..e4b78d1 100644
--- a/tests/ModelFactoryTest.php
+++ b/tests/ModelFactoryTest.php
@@ -458,6 +458,7 @@ final class ModelFactoryTest extends TestCase
             'is_admin' => true,
             'join_time' => 1678000000,
             'permissions' => ['pin_message', 'write'],
+            'alias' => null,
         ];
 
         $chatMember = $this->factory->createChatMember($rawData);
diff --git a/tests/Models/Attachments/Buttons/Inline/MessageButtonTest.php b/tests/Models/Attachments/Buttons/Inline/MessageButtonTest.php
new file mode 100644
index 0000000..98d7c8e
--- /dev/null
+++ b/tests/Models/Attachments/Buttons/Inline/MessageButtonTest.php
@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace BushlanovDev\MaxMessengerBot\Tests\Models\Attachments\Buttons\Inline;
+
+use BushlanovDev\MaxMessengerBot\Enums\InlineButtonType;
+use BushlanovDev\MaxMessengerBot\Models\Attachments\Buttons\Inline\MessageButton;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\TestCase;
+
+#[CoversClass(MessageButton::class)]
+final class MessageButtonTest extends TestCase
+{
+    #[Test]
+    public function toArraySerializesCorrectly(): void
+    {
+        $button = new MessageButton('Test Button');
+
+        $expectedArray = [
+            'type' => InlineButtonType::Message->value,
+            'text' => 'Test Button',
+        ];
+
+        $resultArray = $button->toArray();
+
+        $this->assertSame($expectedArray, $resultArray);
+    }
+}
diff --git a/tests/Models/BotPatchTest.php b/tests/Models/BotPatchTest.php
index 93ad912..4270257 100644
--- a/tests/Models/BotPatchTest.php
+++ b/tests/Models/BotPatchTest.php
@@ -58,4 +58,11 @@ final class BotPatchTest extends TestCase
         $patch = new BotPatch();
         $this->assertEmpty($patch->toArray());
     }
+
+    #[Test]
+    public function toArrayFirstAndLastName(): void
+    {
+        $patch = new BotPatch(first_name: 'New Name', last_name: null);
+        $this->assertEquals(['first_name' => 'New Name', 'last_name' => null], $patch->toArray());
+    }
 }
diff --git a/tests/Models/ChatAdminTest.php b/tests/Models/ChatAdminTest.php
index 9671125..64fa712 100644
--- a/tests/Models/ChatAdminTest.php
+++ b/tests/Models/ChatAdminTest.php
@@ -24,6 +24,7 @@ final class ChatAdminTest extends TestCase
         $expected = [
             'user_id' => 123,
             'permissions' => ['write', 'pin_message'],
+            'alias' => null,
         ];
 
         $this->assertEquals($expected, $admin->toArray());
diff --git a/tests/Models/ChatMemberTest.php b/tests/Models/ChatMemberTest.php
index 4f207e0..fabdd96 100644
--- a/tests/Models/ChatMemberTest.php
+++ b/tests/Models/ChatMemberTest.php
@@ -34,6 +34,7 @@ final class ChatMemberTest extends TestCase
             'is_admin' => true,
             'join_time' => 1678000000,
             'permissions' => ['pin_message', 'write'],
+            'alias' => null,
         ];
 
         $member = ChatMember::fromArray($data);
@@ -66,6 +67,7 @@ final class ChatMemberTest extends TestCase
             'is_admin' => false,
             'join_time' => 1678000001,
             'permissions' => null,
+            'alias' => null,
         ];
 
         $member = ChatMember::fromArray($data);
diff --git a/tests/Models/ChatTest.php b/tests/Models/ChatTest.php
index 269d942..dc01d3c 100644
--- a/tests/Models/ChatTest.php
+++ b/tests/Models/ChatTest.php
@@ -48,6 +48,10 @@ final class ChatTest extends TestCase
             ],
             'messages_count' => 100,
             'chat_message_id' => 'mid.123',
+            'participants' => [
+                '456' => 1678886400000,
+                '789' => 1678886500000,
+            ],
         ];
 
         $chat = Chat::fromArray($data);
@@ -99,5 +103,6 @@ final class ChatTest extends TestCase
         $this->assertNull($chat->dialogWithUser);
         $this->assertNull($chat->messagesCount);
         $this->assertNull($chat->chatMessageId);
+        $this->assertNull($chat->participants);
     }
 }