The licence has been extended in the latest build, but if your copy has already expired (mine had) you'll need to download the
latest build from here, because you won't be able to get to the "check for updates" menu item.
Also, if you've run OF, you may need to log off and then back on again before installing the new version, in order to stop some running services. You can probably do it from Terminal too, but I don't know how.
Mark