Description
Sage Pay is upgrading to version 3 by 31st July 2015. It means if you are using Sage Pay Form gateway and do not install this patch you will not be able to process payments since August.
Solution
1. Download and unzip new files to /payments folder
http://www.viart.com/downloads/sagepay_form_scripts.zip
2. On Settings > Orders > Payment Systems > Sage Pay Form > Edit Payment System update two parameters:
VPSProtocol: 3.00
Payment URL: ./payments/sagepay_form_checkout.php
3. On Settings > Orders > Payment Systems > Sage Pay Form > Final Checkout Settings update one parameter:
Validation Script: ./payments/sagepay_form_validate.php
Please do not forget to make a backup copy of the current files and settings in case something goes wrong.
