// What's the latest available version?
  FileVerInfo := TFileVersionInfo.Create(nil);

  try
    FileVerInfo.ReadFileInfo;
    edtGroffStudioInstalledVersion.Text := FileVerInfo.VersionStrings.Values['FileVersion'];
    lblAboutProductName.Caption := FileVerInfo.VersionStrings.Values['ProductName'] + ' ' + FileVerInfo.VersionStrings.Values['FileVersion'];


    {$IFDEF WINDOWS}
    OnlineVersionsFile := TFPCustomHTTPClient.SimpleGet('https://groff.tuxproject.de/updates/versions.txt');
    reGroffVersion := TRegExpr.Create('groff-win ([\d\.]+) (.*)$');
    reGroffVersion.ModifierM := True;
    if reGroffVersion.Exec(OnlineVersionsFile) then
    begin

    reGroffStudioVersion.ModifierM := True;
    if reGroffStudioVersion.Exec(OnlineVersionsFile) then
    begin
      // Compare the two versions - ours and the online one:
      GroffHelpers.VerStrCompare(reGroffStudioVersion.Match[1], FileVerInfo.VersionStrings.Values['FileVersion'], HasVersionUpdate);
      if HasVersionUpdate > 0 then
        MainStatusBar.Panels[2].Text := 'update ' + reGroffStudioVersion.Match[1] + ' available';
    end else MainStatusBar.Panels[2].Text := '';
    {$ELSE}
    // Non-Windows platforms won't need some of that.
    {$IFDEF DARWIN}
    // What's the latest available version?
    MainStatusBar.Panels[2].Text := '';
    try
      HTTPClient := TFPHTTPClient.Create(Nil);
      HTTPClient.OnGetSocketHandler := @GetSocketHandler;
      OnlineVersionsFile := HTTPClient.SimpleGet('https://groff.tuxproject.de/updates/versions.txt');

      reGroffStudioVersion := TRegExpr.Create('studio-macos ([\d\.]+) (.*)$');
      reGroffStudioVersion.ModifierM := True;