Are you sure? Under Manage Reservations when I click the blue "Upgrade Flight" button I'm still going to the 2nd tab "Redeem Awards to Upgrade" whereas in the past I'd always go to the 1st tab "Purchase Upgrade" where they're always be an offer as long as there was more than one First Class seat available -- this new behavior has been in place for approx one month. I would note that only once in the past 4 months have I seen a single seat available on the "Redeem Awards to Upgrade" tab and that availability only lasted two days!