Regression testing ensures that recent code changes do not negatively impact existing functionality. In fast-moving development environments, even small updates can introduce defects that affect core features, making regression testing essential for software stability.
By running regression testing regularly, teams can verify that enhancements, bug fixes, and refactoring do not break previously working functionality. Automated regression tests provide speed and consistency, while targeted manual testing helps cover complex or edge-case scenarios.
Embedding regression testing into CI/CD workflows enables early defect detection, reduces the risk of production failures, and supports reliable and predictable software releases.