Backup Exec 2012 R2 (now named 2014 Beta) and no valid license

We bought a server with a Tandberg Streamer LTO Ultrium 4 and a version of Backup Exec 2012. The server works with Windows Server 2012. Since a verly long time now Symantec promises to release a version of Backup Exec which supports server 2012 as a media server.

I was quite happy when I finally got the message, that the beta 2014 will support installation on windows server 2012. As you can read in the description of the beta it is the formerly known version Backup Exec 2012 R2.

Since Symantec announced to release a working version for Windows Server 2012 I wonder, if I now have to buy a new license?