Opera 8.50 was just released, with the most noticeable change being it'll be 100% free (still only as in beer though). This change in marketing and lack of ads is permanent.
Users having purchased licenses the past 30 days is eligible for a refund if they wish. If not, they'll get premium support services, like any users that keep paying will get.
Check out the browser with fewer known open security holes than Firefox here: