Regression testing ensures that previously working features remain stable after new changes are introduced. As development teams release updates frequently, regression testing helps prevent unintended issues from affecting core functionality.
By running regression testing after code changes, teams can quickly identify side effects caused by enhancements, bug fixes, or refactoring. This is especially important in environments with shared components and frequent integrations.
Regression testing can be automated for speed and consistency, while targeted manual checks add value in complex or high-risk areas. Together, these approaches help teams balance rapid delivery with dependable quality.
When integrated into CI pipelines and release workflows, regression testing supports predictable releases and long-term software reliability.