InstallAware

We currently use InstallAware 8 for our installer. We're considering upgrading to the latest version of InstallAware. Does anyone know how easy or difficult it will be to upgrade from 8 to the current version? Is there any documentation available here about the upgrade process?

Greg,

I understand you can migrate direct to 12 with no loss of functionality. You won't be able to use 12 projects on 8 however.