diff --git a/src/GatewayChecksum.php b/src/GatewayChecksum.php
index 2256385..4698859 100644
--- a/src/GatewayChecksum.php
+++ b/src/GatewayChecksum.php
@@ -8,8 +8,8 @@
 //
 class GatewayChecksum {
   public static $checksum = "";
-  public static $baseChecksum = "2431fcb05eb853db87a1df45318f6336";
-  public static $versionNo = "P6.22";  //
+  public static $baseChecksum = "d5e025ca8404da437562cdb81fe6272c";
+  public static $versionNo = "P6.23";  //
 
 //////////////////////////////////////////////////////////////////////
 //
@@ -27,7 +27,7 @@ static function SetVersion()
 		  md5_file($dirName . "/GatewayCodes.php");
     GatewayChecksum::$checksum = md5($baseString);
     if (GatewayChecksum::$checksum != GatewayChecksum::$baseChecksum)
-      GatewayChecksum::$versionNo = "P6.22m";
+      GatewayChecksum::$versionNo = "P6.23m";
   }
 }
 
diff --git a/src/GatewayCodes.php b/src/GatewayCodes.php
index 3711af7..aa58492 100644
--- a/src/GatewayCodes.php
+++ b/src/GatewayCodes.php
@@ -89,6 +89,7 @@
 define("GatewayCodes__REASON_DECLINED_CAVV_AUTOVOID", 163);
 define("GatewayCodes__REASON_BANK_INVALID_TRANSACTION", 165);
 define("GatewayCodes__REASON_CVV2_REQUIRED", 167);
+define("GatewayCodes__REASON_BANK_HARD_DECLINE", 168);
 
 define("GatewayCodes__REASON_RISK_FAIL", 200);
 define("GatewayCodes__REASON_CUSTOMER_BLOCKED", 201);