Installing Releases with Higher Version Numbers TIBCO products use a three-digit release number that makes it possible to specify major, minor, and service pack release. For example, release 2.1.3 means major version 2, minor version 1, and service pack 3. • If you are installing using a service pack release (for example, 5.6.1 over 5.6.0), the installer will silently overwrite the existing version of the software. No interruptions to running software results. In that case, TIBCO Domain Utility is not launched, and you are not prompted to create an administration domain. • If you are installing using a new major or minor release of a product that has already been installed, the installer will create a new directory in the directory of the old installation that is named after the two-digit release number (e.g. 5.8). The old installation is not removed, and must be uninstalled separately if you wish to remove it. In that case, TIBCO Domain Utility is launched at the end of installation, and you are prompted to create an administration domain. If you install a product and that product is already installed on your machine, you cannot choose a different location.