7.2. Note on Token Processing System Upgrades

Because the Token Processing System (TPS) subsystem in Red Hat Certificate System 9.0 was released as a tech preview, upgrade to Red Hat Certificate System 9.1 or later is not supported. The TPS subsystem needs to be uninstalled from Red Hat Certificate System 9.0, and then reinstalled on Red Hat Certificate System 9.1. See the Red Hat Certificate System Planning, Installation and Deployment Guide for installation and uninstallation instructions.