Fixed Latest version played not getting saved. Also added online Launcher updater. Launcher now also says what version it is in the bottom left.

Form1.cs

@@ -22,9 +22,13 @@ namespace HelloWorld
 {
     public partial class Form1 : Form
     {
+
+        private const string UpdateURL = "https://ibatv.xyz/data/lnch/hy.txt";
+
         public Form1()
         {
             InitializeComponent();
+            btnLauncherUpdate.Visible = false;
             LoadComboBoxItems();
             LoadDownloadedFiles();
 
@@ -32,8 +36,19 @@ namespace HelloWorld
             string path = ".ibalaunch";
             string uuidsave = ".ibalaunch\\uuid";
             string usersave = ".ibalaunch\\username";
+            string verssave = ".ibalaunch\\lastplayedversion";
             string HytaleUserData = "UserData";
 
+
+
+            Version localVersion = GetLocalVersion();
+
+
+            string localversionstring = localVersion.ToString();
+            //Console.WriteLine("Version" + localversionstring);
+            labelLauncherVersion.Text = localversionstring;
+
+
             try
             {
                 DirectoryInfo di = Directory.CreateDirectory(path);
@@ -94,8 +109,62 @@ namespace HelloWorld
             else
             {
             }
+
+            // UUID File Checking
+            if (File.Exists(verssave))
+            {
+                FileInfo fileInfo = new FileInfo(verssave);
+                if (fileInfo.Length == 0)
+                {
+                    Console.WriteLine("Last Played file is empty. Not setting anything.");
+                }
+                else
+                {
+                    Console.WriteLine("Last Played file is not empty. Size: " + fileInfo.Length + " bytes.");
+
+                    comboBox2Play.Text = File.ReadAllText(verssave);
+                }
+            }
+            else
+            {
+            }
         }
 
+
+        private async Task CheckForUpdateAsync()
+        {
+            try
+            {
+                Version localVersion = GetLocalVersion();
+                Version onlineVersion = await GetOnlineVersionAsync();
+
+                if (onlineVersion > localVersion)
+                {
+                    btnLauncherUpdate.Visible = true;
+                }
+            }
+            catch (Exception ex)
+            {
+                // Optional: log or ignore
+                Debug.WriteLine(ex.Message);
+            }
+        }
+
+        private Version GetLocalVersion()
+        {
+            return Assembly.GetExecutingAssembly().GetName().Version;
+        }
+
+        private async Task<Version> GetOnlineVersionAsync()
+        {
+            using (HttpClient client = new HttpClient())
+            {
+                string versionText = await client.GetStringAsync(UpdateURL);
+                return new Version(versionText.Trim());
+            }
+        }
+
+
         private void button1_Click(object sender, EventArgs e){}
         private void lblHelloWorld_Click(object sender, EventArgs e){}
         private void label2_Click(object sender, EventArgs e){}
@@ -455,5 +524,67 @@ namespace HelloWorld
             }
 
         }
+
+        private async void btnLauncherUpdate_Click(object sender, EventArgs e)
+        {
+            string tempExe = Path.Combine(Path.GetTempPath(), "latest.exe");
+
+            await DownloadUpdateAsync(tempExe);
+
+            StartUpdaterAndExit(tempExe);
+        }
+
+
+
+        private async Task DownloadUpdateAsync(string destinationPath)
+        {
+            using (HttpClient client = new HttpClient())
+            using (var response = await client.GetAsync("https://ibatv.xyz/data/lnch/hy/latest.exe", HttpCompletionOption.ResponseHeadersRead))
+            {
+                response.EnsureSuccessStatusCode();
+
+                using (var fs = new FileStream(
+                    destinationPath,
+                    FileMode.Create,
+                    FileAccess.Write,
+                    FileShare.None))
+                {
+                    await response.Content.CopyToAsync(fs);
+                }
+            }
+        }
+
+
+        private void StartUpdaterAndExit(string newExePath)
+        {
+            string currentExe = Application.ExecutablePath;
+
+            string cmd =
+                $"/C timeout 2 >nul && " +
+                $"copy /Y \"{newExePath}\" \"{currentExe}\" && " +
+                $"start \"\" \"{currentExe}\"";
+
+            Process.Start(new ProcessStartInfo
+            {
+                FileName = "cmd.exe",
+                Arguments = cmd,
+                WindowStyle = ProcessWindowStyle.Normal,
+                CreateNoWindow = true
+            });
+
+            Application.Exit();
+        }
+
+
+
+        private async void Form1_Load(object sender, EventArgs e)
+        {
+            await CheckForUpdateAsync();
+        }
+
+        private void labelLauncherVersion_Click(object sender, EventArgs e)
+        {
+
+        }
     }
 }