Regression testing is a type of testing that is performed to verify that changes or modifications to a software application or system have not introduced new defects or issues. Regression testing services involve the execution of a subset of test cases that have been specifically chosen to verify the functionality that was previously tested and to ensure that it has not been adversely affected by the changes. The goal of regression testing is to detect any regressions, or backward steps, in the functionality of the software as a result of the changes. Regression testing services can include a range of activities, such as: • Identifying the test cases that need to be included in the regression testing suite • Executing the regression test cases and generating test reports • Debugging and troubleshooting any issues or defects that are identified during testing • Updating the regression testing suite as needed to ensure that it remains effective and relevant Regression testing is an important part of the software development and maintenance process, as it helps to ensure that changes to the software do not negatively impact its quality or functionality.