Available with Workflow Manager license.
ArcGIS Workflow Manager (Classic) Server sites
The ArcGIS Workflow Manager (Classic) Server setup package is designed to detect and upgrade an existing installation of ArcGIS Workflow Manager (Classic) Server on the target system.
Common software upgrade questions
This section addresses common questions about the upgrade behavior of ArcGIS Server 10.9.1.
Do I need to uninstall ArcGIS Workflow Manager (Classic) Server before installing the latest version of ArcGIS Workflow Manager (Classic) Server?
No. If you already have versions of ArcGIS Workflow Manager (Classic) Serverinstalled, the setup will automatically upgrade it to the latest version of ArcGIS Workflow Manager (Classic) Server without any additional configuration. Additionally, you can install the latest version of ArcGIS Workflow Manager (Classic) Server without having a previous release installed on your machine.
Do I need to back up anything before installing the latest version of ArcGIS Workflow Manager (Classic) Server?
No. All services and site configuration changes are preserved when upgrading to ArcGIS Workflow Manager (Classic) 10.9.1 Server.
Do I need to stop my GIS services and ArcGIS Server before installing the latest version of ArcGIS Workflow Manager (Classic) Server?
No, but you need to restart the ArcGIS Server service after the installation.
If I upgrade to ArcGIS Server 10.9.1, do I have to upgrade to the latest version of ArcGIS Workflow Manager (Classic) Server?
Yes. The release of ArcGIS Workflow Manager (Classic) Server must match ArcGIS Server. You cannot run mismatched releases.