When upgrading from R7.x the new version can simply be installed over the top of the current version.
Obtain the latest msi files for deployment
Confirm pre-requisites and deploy the msi files using Enterprise Deployment instructions
If you upgrade or change your SharePoint environment you will need a new license key. The steps below should be followed:
Create new license list on new SharePoint site
Update license location in the OnePlace Solutions software.
If using MSI deployment, you have the option to set the new license location at time of deployment, and deploy any new configuration settings.
Enterprise deployment steps can be found here.