Canonical has started the development of the next iteration Ubuntu 15.04 just after the release of Ubuntu 14.10 Utopic Unicorn on October 23. Ubuntu developers have decided to not waste any time and start working on the next version of the distribution so they can meet the deadlines.
Ubuntu 15.04 codenamed Vivid Vervet will feature a new Unity desktop. This will make this release very interesting for the Ubuntu users, but it will take them a while in order for the new features to be implemented properly. According to the official announcement the arch-indep build architecture has been changed from i386 to amd64, a switch from C to C.UTF-8 on the builders and the default locale when none is selected in the installer will take place ,
“In theory, this shouldn’t change much, but the arch-indep build architecture has been changed from i386 to amd64, which more closely matches what (most) developers test on, and also what Debian will be doing when they implement their source upload strategy.”, reads the announcement.
There are no iso builds of the Ubuntu 15.04 Vivid Vervet yet, but I am sure some iso images of this upcoming Ubuntu release will be available for testing as soon as possible.
In the meantime you can give a try to the recent released Ubuntu 14.10 Utopic Unicorn, a more advanced and faster distribution than Ubuntu 14.04 LTS.
The unixmen team also provides the latest tutorials on Ubuntu 14.10 Utopic Unicorn in order to help the users with the problems they may face while working on it. We also have published a very detailed step by step guide on how to upgrade from Ubuntu 14.04 Trusty Tahr to Ubuntu 14.10 Utopic Unicorn.
You can also learn how to disable Unity Online Search feature on Ubuntu 14.10 and if you are looking for a nice tutorial on how to enable Workspaces on Ubuntu 14.10 Utopic Unicorn this is the right one for you.