Upgrading from HiPay v1

Before upgrading, make sure your install meets the requirements. These can be checked here.
If you are upgrading from version 1.x to 2.x, you should first delete the "hipay" folder which is located at "modules/gateways/hipay". This way, al leftovers from the previous version are deleted.
After this, you can upload the new files to "modules/gateways/", and continue the installation as described here.
You don't need a new license key. You can use the existing v1 license key. If you have any license issue, please reissue your license as described here, or contact support.