We are preparing an upgrade for our SAS 9.4 M4 (data management) environment. One of the questions we still need to be answer is which maintenance release we should install, M6 or M7. We are careful to be install the last version of maintenance release M7, because it's recently released (September). So, I want to know what are the difference is between these two versions. Is there an easy way to compare the difference between the maintenance releases?