In the footnotes, just below the Chart:
I'd love to cover OS X Server, but then I'd have to get Mac OS X Server 1.0, 10.0, 10.1, 10.2, 10.3, 10.4, 10.5, 10.6, 10.7, and 10.8. Then I'd have to get a Plus and then something that can run 7.6 through 9.2. Then run the tests on how to configure them and make them work, that would take at least a week straight.
