WinSCP transition to TLS 1.2

// Setup session options
SessionOptions sessionOptions = new SessionOptions
{
    Protocol = ftpMode.ToUpper().ToString() == "SFTP" ? Protocol.Sftp : Protocol.Scp,
    HostName = hostname,
    UserName = username,
    Password = password,
    PortNumber = port,
    GiveUpSecurityAndAcceptAnySshHostKey = true,
    SshPrivateKeyPath = sshprivetekeypath
};
 
using (Session session = new Session())
{
    // Connect
    session.Open(sessionOptions);
 
    // Upload files
    TransferOptions transferOptions = new TransferOptions();
    transferOptions.FileMask = filemask;
    transferOptions.TransferMode = TransferMode.Binary;
    TransferOperationResult transferResult;
    //transferResult = session.GetFiles("/home/user/*", "d:\\download\\", false, transferOptions);
    transferResult = session.GetFiles(sourcepath, destinationpath, false, transferOptions);
 
    // Throw on any error
    transferResult.Check();
}