Product versions are automatically updated from 4.0.x to 5.0.1 during the upgrade process, which is typically completed by an administrator. Administrators can learn more about upgrade by reading Upgrading Rational® Engineering Lifecycle Manager
This topic explains how the migration from 4.0 releases to 5.0.1 takes into account the new product configuration and product configuration baseline artifacts. To learn about product configurations and baselines, see Terminology and concepts.
When the administrator upgrades Rational Engineering Lifecycle Manager from 4.0 releases to 5.0.1, the server is unavailable. If you log in during the upgrade, you receive a message that an upgrade is in progress. You must wait until the upgrade is completed to log in to the tool.
The newly created product configuration or baseline is migrated with one child product, which is the original 4.0.x top-level product version.
Upgraded products, and product configurations and baselines that were created to support the upgraded products, are given unique version identifiers. The baseline name is set to the 4.0.x product snapshot name.