diff --git a/README.md b/README.md
index 75fd39d..dc55f6f 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 [![NuGet prerelease](https://img.shields.io/nuget/vpre/WTelegramClient?color=C09030&label=dev+nuget)](https://www.nuget.org/packages/WTelegramClient/absoluteLatest)
 [![Donate](https://img.shields.io/badge/Help_this_project:-Donate-ff4444)](https://buymeacoffee.com/wizou)
 
-## *_Telegram Client API library written 100% in C# and .NET_*
+## *Telegram Client API library written 100% in C# and .NET*
 
 This library allows you to connect to Telegram and control a user programmatically (or a bot, but [WTelegramBot](https://www.nuget.org/packages/WTelegramBot) is much easier for that).
 All the Telegram Client APIs (MTProto) are supported so you can do everything the user could do with a full Telegram GUI client.
diff --git a/src/Client.Helpers.cs b/src/Client.Helpers.cs
index 8a3768f..eb0f8a6 100644
--- a/src/Client.Helpers.cs
+++ b/src/Client.Helpers.cs
@@ -899,8 +899,8 @@ namespace WTelegram
 					var mc = await this.Channels_GetChannels(new InputChannel(chatId, 0));
 					if (!mc.chats.TryGetValue(chatId, out chat))
 						throw new WTException($"Channel {chatId} not found");
-					else if (chats != null)
-						chats[chatId] = chat;
+					else
+						chats?[chatId] = chat;
 				}
 			}
 			else
diff --git a/src/Client.cs b/src/Client.cs
index ce16017..316dfc0 100644
--- a/src/Client.cs
+++ b/src/Client.cs
@@ -391,7 +391,9 @@ namespace WTelegram
 								_reactorReconnects = 0;
 						if (_reactorReconnects == 0)
 							throw;
+#pragma warning disable CA2016
 						await Task.Delay(5000);
+#pragma warning restore CA2016
 						if (_networkStream == null) return; // Dispose has been called in-between
 						await ConnectAsync(); // start a new reactor after 5 secs
 						lock (_pendingRpcs) // retry all pending requests
diff --git a/src/Compat.cs b/src/Compat.cs
index 4e9f9dc..31f26d8 100644
--- a/src/Compat.cs
+++ b/src/Compat.cs
@@ -75,7 +75,7 @@ namespace WTelegram
 static class Convert
 {
 	internal static string ToHexString(byte[] data) => BitConverter.ToString(data).Replace("-", "");
-	internal static byte[] FromHexString(string hex) => Enumerable.Range(0, hex.Length / 2).Select(i => System.Convert.ToByte(hex.Substring(i * 2, 2), 16)).ToArray();
+	internal static byte[] FromHexString(string hex) => [.. Enumerable.Range(0, hex.Length / 2).Select(i => System.Convert.ToByte(hex.Substring(i * 2, 2), 16))];
 }
 public class RandomNumberGenerator
 {
diff --git a/src/WTelegramClient.csproj b/src/WTelegramClient.csproj
index 524af21..02e519b 100644
--- a/src/WTelegramClient.csproj
+++ b/src/WTelegramClient.csproj
@@ -28,7 +28,7 @@ $(ReleaseNotes)</Description>
     <PackageTags>Telegram;MTProto;Client;Api;UserBot</PackageTags>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <PackageReleaseNotes>$(ReleaseNotes)</PackageReleaseNotes>
-    <NoWarn>NETSDK1138;CS0419;CS1573;CS1591</NoWarn>
+    <NoWarn>NETSDK1138;CS0419;CS1573;CS1591;CA1850</NoWarn>
     <DefineConstants>TRACE;OBFUSCATION;MTPG</DefineConstants>
     <!--<IsAotCompatible Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net7.0'))">true</IsAotCompatible>-->
   </PropertyGroup>