@rajinisivaram I realized today that we also have to count the connections from older clients that do not send SASL_AUTHENTICATE. So it might be good to not refer to "version" at all. Maybe it is best to not refer to "sasl" either? How about `successful-authentication-no-reauth` as the metric name? Then maybe we don't need a special tag? If we still do need a tag then maybe `reauthSupport=false` to avoid referring to "version"?
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