We have posted updates to the core cart downloads to address some new, minor compliance and security requirements. This is a recommended upgrade for all live installs running the PHP API platform (any new install after January 5, 2015). If you have already downloaded / installed the cart, please login to your account to download the latest version. The new files / fixes are located in the /Upgrade/ folder in the downloaded zip file. Simply upload the folders (/sitestorepro/ and /estore_admin/) inside the /Upgrade/ folder up to your hosting account to overwrite the files/folders of the same name on your live install(s). The upgrade will not affect any design work, customizations or data on your live installs.