Comment 9 for bug 395905

I really like Hercules' concept, but here's one caveat: it may be possible to update Ubuntu, but not necessarily to the "next" or "other" version.

So, it may include phrases like:
"This is the most up to date version of Ubuntu available - <version>"/"You are using the most updated version of Ubuntu - <version>",

and

"You're using Ubuntu <version>. There are updates available for your system, click here to learn how to update",

and finally,

And
"Your currently installed version of Ubuntu - <version> - will be supported until xxxx, click here to learn about Ubuntu's release cycles and support periods"