To upgrade Ontolica modules you will need to run the Setup.exe program from the main folder of the installation package on one of the Web front-end servers in your SharePoint farm, preferably where the SharePoint Central Administration site is hosted. If the version that is being installed is later than existing one the Ontolica installer automatically detects it and provides the Upgrade option, which will be selected by default. Remaining two options are Keep and Remove. The installer does not make any changes if the Keep option is selected to for the selected module and it deletes the current version of the module completely if the Remove option is selected.
After upgrading you will need to deactivate and then re-activate the Ontolica features first at the SharePoint farm level Central Administration > System Settings > Manage farm features and then at the site collection level site collection root site > Site Actions > Site Settings > Site collection features.
The upgrade process automatically sets the free evaluation license, which comes with the installer, as active. You will need to go to General Application Settings > Manage Ontolica Licenses and production or development license as active. Please remember that with most upgrades you will need a new license file, which can be requested at support.surfray.com.