Expected outage
The expected outage time ranges from two minutes to several hours, depending on your hardware and the number of SharePoint sites. We recommend that all Virto users perform upgrades or installations of the web part over the weekend.
For users with 100+ site collections, we suggest using the Deploy.ps1 script from the package instead of the setup program (see Installing the Virto Kanban Board web part). Please contact our technical support for further details.