what is difference between regression testing and re-
testing?

Answer Posted / satish kumar

Regression testing( repeated testing) is a type of testing in which in already tested functionality is once again tested to check if the old bugs are rectified,
Retesting is a type of testing in which an already tested function is once again tested to reproduce the bug if at all any, to rule out the environment issues and to ensure functional robustness
regression testing is always performed from build #2 it can not be performed on build #1, Retesting is started from build #1 itself

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