Uninstall before upgrading?
Simple question but not seeing much consensus on it. Before upgrading to a newer version of L.O., must I uninstall the current version? I've seen both answers. Firefox "saves" my large, new-version L.O. file but doesn't run it as an update automatically. Perhaps the geniuses at L.O. could resolve this by simply stating whether uninstallation is necessary next to their upgrade-now postings.
For safety, on Windows I always uninstall the previous version, even if it's just a minor upgrade.