For example, Rational ClearQuest version 7.0.1.0 supports both feature levels 5 and 6. But clients and administrative tools from version 7.0 and earlier cannot access schema repositories and user databases with feature level 6. All clients need to be upgraded to version 7.0.1 before moving to feature level 6. However, you do not have to increase the feature level if you do not want to enable the new features in level 6. Increasing the feature level is a time-consuming process that requires significant preparation, so it should only be undertaken when adequate time and resources are available.
When you create a new schema repository using the Maintenance Tool, the wizard allows you to select from a list of the feature levels supported by the current version of Rational ClearQuest. For example, if you are creating a new schema repository with version 7.0.1, you are given a choice between feature levels 6 and 5. For information on how to create a new schema repository, see Creating a schema repository. For more information, see Considerations for moving to feature level 6.
Use the Maintenance Tool to upgrade the feature level of existing schema repositories and user databases. For more information, see Raising the feature level and metaschema version.