Ah. So, I went to "Personalize" and then pasted in the new SN and it worked. They probably told me to do that in some email, lol. 

So, is there any reason to keep my 2014 non dev version around? I had seen some complaints here in the forums when dev first came out, and wanted to wait until those issues had been resolved (not sure if that's the case). I can pull it from the backup, if there is good reason.