When a new test case version is derived, the version number is incremented by 1. To modify a test case after it is in Final status, a new version of that test case must be derived.
A new version can be derived from the latest version of a test case only, and only when the latest version is in Final status. To do this, click located next to the version status, which should be marked as Final.
Users will need view and edit permissions for test coverage to perform this action.