I hope I am not being too paranoid but given the changes in other airlines, I suddenly noticed the following foot note in all of the earning tables on the web site for AA and partner flights
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">
* American Airlines reserves the right to change the eligible fare classes at any time without notice.
</font>
Is anyone sure if this has always been there for a while and something I have just never noticed not being worried about it or has this been recently inroduced (in which case I really have to start worrying

)?