Automated regression testing is a valuable means of protecting application quality without slowing down software delivery operations. It offers several key benefits, including increased efficiency, faster release cycles, cost savings, enhanced test coverage, reduced human error, and better test results with less time and effort. By automating regression tests, teams can streamline repetitive tasks, save valuable time and resources, and focus on more productive tasks than running manual regression tests. The process for automating regression tests is straightforward, involving strategic decisions about what to test and how often to run regression tests, writing automated regression tests using a test automation framework, and integrating testing into CI/CD pipelines. However, it also poses some challenges, such as deciding exactly what and when to test, managing time, and keeping regression tests in sync with software delivery operations. To perform regression testing effectively and efficiently, teams should consider best practices like keeping tests small, being strategic about when to run tests, covering multiple changes with a single set of regression tests, integrating regression tests into CI/CD pipelines, and considering multi-tiered regression tests.