LinOxide published a tutorial about setting up Ubuntu as a rolling release using the Rolling Rhino tool.
How to Setup Ubuntu Rolling Release Using Rolling-Rhino
In this tutorial, we will see how to change your daily Ubuntu Linux installation into a rolling release distribution. This means, that instead of you needing to wait for a new distro release, you have the latest package updates as soon as they come out.
How to Setup Ubuntu Rolling Release Using Rolling-Rhino