Regression and retest difference

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Regression testing ensures new code changes do not negatively impact existing functionality, while retesting focuses on verifying specific defects have been fixed.

Regression testing is performed to ensure that new code changes do not introduce new defects or negatively impact existing functionality.
Retesting is done to verify that specific defects identified in previous testing cycles have been fixed.
Regression testing is typically automated to cover a wide range of scenarios, while retesting is often manual and focused on specific test cases.
Examples: After a bug fix, retesting is done to verify the bug is resolved. Regression testing is done to ensure the bug fix did not introduce new issues.
Regression testing is done throughout the development cycle, while retesting is usually done after a defect is fixed.

Regression and retest difference

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