We perform all the needed tasks to upgrade your current version to the latest available.
Before we start we check your setup to see if there is additional work to do, e.g. updating customizations, etc. If needed we package configurations, upgrade add-on and everything else to be ready for the upgrade.
The next step is the test migration. Whenever possible we use a backup from your production system to determine the needed downtime and to detect possible problems. After you checked everything and agreed to a date we carry out the final migration as the last step.