cPanel VPS Optimized is currently delivered through the possible unstable EDGE tree which isn't intended for production use and, in general, shouldn't be used anywhere except test and development systems and/or in rare cases when business critical update was included into the EDGE build.
Our past experience shows that EDGE builds contains countless number of bugs and may cause issues starting from stability to complete service unavailability. We aren’t really in position to act like a proxy between EDGE build users and cPanel support to deliver possible problem reports to the cPanel team. By saying that anyone welcome to use the EDGE tree as long as person who is using it knows that he/she is doing and how to deal with possible issues.
On production systems STABLE and RELEASE builds should be used, not the EDGE one. We would encourage everybody to wait a bit and allow others to iron out possible issues in the cPanel build which is currently distributed through the EDGE tree. And, in general, our support will suggest to downgrade back from EDGE in case if problems are reported and EDGE build is found to be running on the VPS.