<p class="isSelectedEnd">Regression testing ensures that existing functionality continues to work as expected after code changes such as feature additions, bug fixes, or refactoring. In fast-paced development environments, it acts as a guardrail that prevents previously solved problems from resurfacing.

<p class="isSelectedEnd">As release frequency increases, manual regression testing becomes difficult to scale. This is why many teams rely on automated regression tests that focus on business-critical flows, APIs, and integrations. These tests provide confidence that core behavior remains stable without slowing down delivery.

<p class="isSelectedEnd">A common challenge withregression testing is test suite bloat. Over time, redundant or low-value test cases can increase execution time while offering little additional coverage. Mature teams continuously review and refine their regression suites, prioritizing risk-based scenarios over sheer volume.

When implemented thoughtfully, regression testing supports rapid innovation while maintaining system stability&mdash;striking a balance between speed and quality.