From version 9.0.1.04 onwards (also known as 188.8.131.52), the IBM Rational Cadence Virtuoso Integration is available as a separate extension offering and can be independently installed and uninstalled using IBM Installation Manager. This mechanism allows you to upgrade the integration bits without the need to upgrade the underlying ClearCase.
For detailed instructions, see ClearCaseCadenceVirtuosoExtension.pdf.
IBM Rational ClearCase
09 August 2018