Interesting... PingPlotter 2.41 seemed to have "Check for Update..." under Help.
Once I checked for update... a small notice appeared in the small status bar at bottom. When I shutdown PingPlotter 2.41 and restarted it.... 'Check for Update' had disappeared from the Help menu.
And... I now startup 3.30.0s... and there's no 'Check for Update' in the Help menu.
[Edit]: Ah... I see there's an auto-update checkbox in View, Options, Internet....