And we all know beta software is exactly the same as release software.
OMG...! Now I see it's stupid discuss this with someone that doesn't know nothing about this topic. If you think from beta to rc Unity are going to change ALL THE ENTIRE API (which really use .NET sockets for multiplayer, so I really don't understand what you refer when you tell: "Unity have the code for this") it's because you've no ****ing idea about software development in general. lol