Upgrading to new versions
Within a major version (2.xx, 3.xx, 4.xx etc.) you can freely upgrade to any newer minor version. For example, if you bought version x.08, you can freely upgrade to x.10 or x.12.
To upgrade to a newer minor version, please see your purchase order confirmation email message. It contains download and installation instructions for all available minor versions.
If you bought a previous major version (for example, 3.xx), you can upgrade to a newer major version (for example, 4.xx) with a discount. To obtain discount conditions, please visit VAC homepage mentioned here.