Joanna wants to ensure that the most current version of each component in her application is deployed. What change management process will help the most with this requirement?

Version control is important to ensure that the current and correct version of an application or component is deployed. Dependency mapping can be important to ensure that changed versions don't cause other issues, but it isn't specifically needed to ensure that the current version is what you're deploying. Impact analysis and allow/deny lists are not directly relevant to this requirement.