So, after StackStatus's announcement about tomorrow's database upgrade earlier, I looked up more information about SQL Server 2014 CTP2. This is what I found.
The important parts of this page are as follows:
The Microsoft SQL Server 2014 CTP2 release is NOT supported by Microsoft Customer Services and Support (CSS).
and
The Microsoft SQL Server 2014 CTP 2 release is available for testing purposes only. The Microsoft SQL Server 2014 CTP 2 release should NOT be installed and used in production environments, including side-by-side with a production instance of SQL Server.
This is the version of SQLServer the entire network is being moved over to, a version that Microsoft explicitly warns you not to use in production environments? And a version they also won't support if something goes wrong?