Yes, in this case a full reinstallation is required if you want the SSL functionality. Obviously if v3 were in production I would have put in the extra time to add a whole upgrade process for this, but the amount of effort involved just isn't worth it for the beta.
We're going to be advising everyone to replace their beta installations and reinstall fresh anyway when RC1 is released and we go to feature-freeze, so either way, a reinstallation is coming if you intend to transition to the stable release when it becomes available.