For the record, 18.04 isn't a dev version now, but 16.04 won't offer the update until 18.04.1 is released in a couple of months. That's a chance for early bugs

For the record, 18.04 isn't a dev version now, but 16.04 won't offer the update until 18.04.1 is released in a couple of months. That's a chance for early bugs to be ironed out before lots of LTS users upgrade.