I answered [this question](https://askubuntu.com/questions/719446/how-to-provide-os-version-to-do-release-upgrade-to-upgrade-from-ubuntu-server-14/719447?noredirect=1#comment1063005_719447) about `do-release-upgrade` not allowing an upgrade of 14.10 to 15.04 only to 15.10, I assumed it was due to 15.04 being end of life.

A user (@xangua ) posted that it was not possible to skip a release with `do-release-upgrade`, so I looked in to this information by running the command on my 14.04 box, but this is where the confusion began.

My 14.04 wants to upgrade straight to 15.04? 

Of course this invalidates my answer as 15.04 is end of life, but why does this command seem to be skipping versions, if not based on end of life? 

There is no indication any thing from 14.10 is being downloaded by the upgrade and `software-updater` says Ubuntu 15.04 is now available for download, some clarification of this would be great.