Which aspect of a traditional project management approach is necessary when PRINCE2 Agile is applied?

The necessity of appropriate control over the versions of products is critical when PRINCE2 Agile is applied because this framework integrates both Agile approaches and the structured control principles found in traditional project management. PRINCE2 emphasizes the importance of managing products and their quality, ensuring that iterations and increments delivered in Agile maintain alignment with the planned outcomes.

By having a control mechanism over product versions, teams can avoid complications arising from uncontrolled changes and ensure that all stakeholders are aware of the current state of the project. This aligns with the PRINCE2 principles of continued business justification and managing by exception, as having clear version control allows for effective decision-making and risk management. It ensures that the end product evolves through iterations while adhering to defined quality standards and business objectives, which is a hallmark of the PRINCE2 method.