What is the latest version of the master server in unity3

I believe that the master server has been updated in unity3, is the default master server hosted by unity for testing games during development the updated version or the old one? Are games compiled in unity2.6 pointing to a different master server?

Where can i find the latest version of the master server and intructions on building it? Where can i find the network facilitator?

The beta version of the unity 3 master server can be found at http://beta.unity3d.com/download/8020885265/download_servers.html