Types of regression testing help teams ensure that existing functionality continues to work as expected after code changes. As software systems evolve through new features, bug fixes, and refactoring, regression testing becomes essential for maintaining stability.

Different types of regression testing are applied based on the scope and risk of changes. Some approaches focus on validating the entire application, while others target only the components affected by recent updates. This allows teams to balance test coverage with execution speed.

Understanding the types of regression testing helps teams choose the most effective approach for each release. Selecting the right strategy reduces the likelihood of unintended defects and supports faster, more confident software delivery.

By applying suitable types of regression testing consistently, teams can protect core functionality and maintain reliable systems over time.