While upgrading every component of an installation has its advantages, in practice many installations retain at least one component that is not the latest version.
The following table describes how different versions of these components work in combination and how to upgrade to another version.
| Topic | Description |
|---|---|
| Upgrading the Repository Engine | Explains how to upgrade the repository engine. |
| Upgrading and Migrating a Repository Database | Explains how to upgrade a repository database and migrate it to a different DBMS format, and how to use a nonupgraded database with an upgraded repository engine. |
| Upgrading an Information Model | Explains how to upgrade an information model using Extensible Markup Language (XML). |
| Using Repository Engine Features with Older Databases | Describes the availability of some features depending on the kind of DBMS and operating system you are using. |