To upgrade your PlateSpin Server to PlateSpin Migrate 2018.11, you must have an existing installation of PlateSpin Migrate 12.3 running on Windows Server 2012 R2 or Windows Server 2016, with or without interim patches and hotfixes applied. Other direct upgrades are not supported.
IMPORTANT:
Before You Upgrade: Ensure that you complete the Prerequisites for Upgrade.
Upgrading to a New Host Platform: To upgrade from an existing installation of PlateSpin Migrate 12.3 Server to a supported new host platform, see Upgrading Migrate to a New Host Platform.