Hi Erling,Yes, as scott stated - a fresh AEM 6.1 instance is better way to proceed and you can deploy the package in to the installed vanilla instance(AEM6.1).But, follow these steps, if you want to upgrade from AEM 6.0 to 6.1: https://docs.adobe.com/docs/en/aem/6-1/deploy/upgrade.htmlThanks,Ratna K...