The Identity Manager Package Manager is designed to manage the entire lifecycle of packages. It maintains a version history for any package that has been installed and subsequently upgraded. This functionality is crucial for system stability, as it allows an administrator to revert to a previous, known-good version if a new package version introduces problems. Therefore, the ability to downgrade any package that has been upgraded is a standard and supported feature.

B: You cannot delete a package from the package catalog if it is currently installed on a driver or another object, as this would break dependencies.

C: This statement is too restrictive. While you upgrade packages installed on drivers, the new package version must first be available in the catalog.

D: This reverses the correct operational sequence. You must first import a package into the catalog before you can install it on a driver.

1. Micro Focus Identity Manager 4.8.5 Package Management Guide, Section: "Managing the Package Life Cycle", Subsection: "Downgrading a Package". This section explicitly states, "If you have upgraded a package and encounter issues with the new version, you can downgrade the package to a previously installed version." This directly supports answer A.

2. Micro Focus Identity Manager 4.8.5 Package Management Guide, Section: "Managing the Package Life Cycle", Subsection: "Deleting a Package from the Catalog". This section notes, "You cannot delete a package from the catalog if it is currently installed on any object in the Identity Vault." This refutes option B.

3. Micro Focus Identity Manager 4.8.5 Package Management Guide, Section: "Managing the Package Life Cycle", Subsection: "Importing a Package". This section describes the process of adding packages to the catalog as a prerequisite for installation, which contradicts the workflow suggested in option D.