Canonical has released Ubuntu 14.04 Long-Term Support (LTS) release, meaning the Linux shop will be supporting this distro until 2019.
Significantly, this is likely the first look that more conservative users will get at the direction Ubuntu has been pursuing since the release of 12.04 back in 2012.
As I noted in the beta review, Ubuntu LTS releases understandably tend toward the conservative end of the spectrum when it comes to new features. You’re not going to see Unity 8 in this release, nor will there be any trace of the Mir graphics stack which Canonical is hoping will one day support both its desktop and mobile offerings.