I'm not against such an option (it would be neat and I'd
use it for minor updates that didn't just fix typos). But
I'd rather have people follow-up to their own nodes rather
than make a major update to an existing node. Or if the
motivation behind the update was some other node, then
follow-up to the motivating node and update your old node
to include a link to your new node.
One exception might be possible long-lived nodes like one
holding the source code for the Tk Chatterbox client, for
example.
-
tye
(but my friends call me "Tye")