As alfred said, this will be fixed once it is out of beta, as the version number will be bumped, so servers will have to update and you will only see updated servers.
Right, a side effect of the beta, will be implicitly fixed when publicly released, so nothing to be done here.
Nothing extracted yet.
In bug #876 it was concluded that the beta and stable are not compatible when using the in game voice but there is no way to find servers using the new version making it a guessing game with very bad odds to find servers with working voice.