Secure in SessionOptions is set to "False" for S3 connections in WinSCP 6.1.1

# Path to WinSCP DLL
$global:winscpPath = "C:\MFT\WinSCPnet.dll"
 
# Load WinSCP .NET assembly
Add-Type -Path "C:\MFT\WinSCPnet.dll"
 
# Set up session options
$sessionOptions = New-Object WinSCP.SessionOptions -Property @{
    Protocol = [WinSCP.Protocol]::S3
    HostName = "s3.eu-west-1.amazonaws.com"
    UserName = "*************"
    Password = "*************"
}
 
$session = New-Object WinSCP.Session
$session.SessionLogPath = "C:\MFT\Integrations\MFT000\aws_test_log.log"
 
$transferOptions = New-Object WinSCP.TransferOptions
$transferOptions.TransferMode = [WinSCP.TransferMode]::Binary
 
# As some servers does not support updating timestamps of remote files.
$transferOptions.PreserveTimestamp = $False
 
$sessionOptions.AddRawSettings("S3DefaultRegion", "eu-west-1")
 
try
{
    # Connect
    $session.Open($sessionOptions)
 
    # Your code
    $session.PutFiles("C:\Files\*", "/datalakeraw/", $False, $transferOptions)
}
finally
{
    $session.Dispose()
}