diff --git a/README.md b/README.md
index 8ca98bb..9b7d7b2 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=RxTelegram_RxTelegram.Bot&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=RxTelegram_RxTelegram.Bot)
 [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=RxTelegram_RxTelegram.Bot&metric=coverage)](https://sonarcloud.io/summary/new_code?id=RxTelegram_RxTelegram.Bot)
 
-RxTelegram.Bot supports Telegram Bot API 7.6 (as at July 1, 2024).
+RxTelegram.Bot supports Telegram Bot API 7.8 (as at July 31, 2024).
 
 This is a reactive designed .NET Library for the Telegram Bot API. It works with the official [Reactive Extentions](https://github.com/dotnet/reactive).
 
diff --git a/src/RxTelegram.Bot/Interface/BaseTypes/Requests/Chats/PinChatMessage.cs b/src/RxTelegram.Bot/Interface/BaseTypes/Requests/Chats/PinChatMessage.cs
index a0c86a1..c90c202 100644
--- a/src/RxTelegram.Bot/Interface/BaseTypes/Requests/Chats/PinChatMessage.cs
+++ b/src/RxTelegram.Bot/Interface/BaseTypes/Requests/Chats/PinChatMessage.cs
@@ -10,6 +10,11 @@ namespace RxTelegram.Bot.Interface.BaseTypes.Requests.Chats;
 /// </summary>
 public class PinChatMessage : BaseRequest
 {
+    /// <summary>
+    /// Unique identifier of the business connection on behalf of which the message will be pinned
+    /// </summary>
+    public string BusinessConnectionId { get; set; }
+
     /// <summary>
     /// Required
     /// Identifier of a message to pin
@@ -23,4 +28,4 @@ public class PinChatMessage : BaseRequest
     public bool DisableNotification { get; set; }
 
     protected override IValidationResult Validate() => this.CreateValidation();
-}
\ No newline at end of file
+}
diff --git a/src/RxTelegram.Bot/Interface/BaseTypes/Requests/Chats/UnpinChatMessage.cs b/src/RxTelegram.Bot/Interface/BaseTypes/Requests/Chats/UnpinChatMessage.cs
index 157a85d..d1672d4 100644
--- a/src/RxTelegram.Bot/Interface/BaseTypes/Requests/Chats/UnpinChatMessage.cs
+++ b/src/RxTelegram.Bot/Interface/BaseTypes/Requests/Chats/UnpinChatMessage.cs
@@ -10,6 +10,11 @@ namespace RxTelegram.Bot.Interface.BaseTypes.Requests.Chats;
 /// </summary>
 public class UnpinChatMessage : BaseRequest
 {
+    /// <summary>
+    /// Unique identifier of the business connection on behalf of which the message will be pinned
+    /// </summary>
+    public string BusinessConnectionId { get; set; }
+
     /// <summary>
     /// Identifier of a message to unpin. If not specified, the most recent pinned message (by sending date) will be unpinned.
     /// </summary>
diff --git a/src/RxTelegram.Bot/Interface/BaseTypes/User.cs b/src/RxTelegram.Bot/Interface/BaseTypes/User.cs
index 52d74b5..6637dee 100644
--- a/src/RxTelegram.Bot/Interface/BaseTypes/User.cs
+++ b/src/RxTelegram.Bot/Interface/BaseTypes/User.cs
@@ -65,4 +65,9 @@ public class User
     /// Returned only in <see cref="ITelegramBot.GetMe"/>.
     /// </summary>
     public bool CanConnectToBusiness { get; set; }
+
+    /// <summary>
+    /// Optional. True, if the bot has a main Web App. Returned only in <see cref="ITelegramBot.GetMe"/>.
+    /// </summary>
+    public bool? HasMainWebApp { get; set; }
 }
diff --git a/src/RxTelegram.Bot/RxTelegram.Bot.csproj b/src/RxTelegram.Bot/RxTelegram.Bot.csproj
index c39a6e8..0899502 100644
--- a/src/RxTelegram.Bot/RxTelegram.Bot.csproj
+++ b/src/RxTelegram.Bot/RxTelegram.Bot.csproj
@@ -10,7 +10,7 @@
         <RepositoryUrl>https://github.com/RxTelegram/RxTelegram.Bot</RepositoryUrl>
         <RepositoryType>git</RepositoryType>
         <PackageTags>Telegram;Bot;Api;Rx;Reactive;Observable;RxTelegram;RxTelegram.Bot</PackageTags>
-        <PackageVersion>7.7.0</PackageVersion>
+        <PackageVersion>7.8.0</PackageVersion>
         <PackageIcon>icon.png</PackageIcon>
         <GenerateDocumentationFile>true</GenerateDocumentationFile>
         <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>