Updating fedora 6
NOTE: This is no longer an option starting with Fedora 18 though so you've been warned. New in Fedora 17/18 is a tool called Fed Up (FEDora UPgrader) which purports to do "dist-upgrades" similar to Debian/Ubuntu distros.Fed Up (FEDora UPgrader) is the name of a new system for upgrading Fedora installs in Fedora 18 and above releases.Rolling release = no versions, packages are just dumped into the distro from the upstream ASAP, right? The level of testing that would go into a package being placed in one of these branches is less stringent than say when a package shows up as an update in a true "rolling release" distro such as Arch Linux (would be my expectation).So Debian is the complete opposite of a rolling release, Ubuntu as well. Here's the section of the wikipedia page that covers the use of development branches for standard release distros: The distinction between rolling release software distributions and development branches of standard release software distributions is often overlooked by users inexperienced with rolling distributions.
This had been a long discussed option on many peoples' wish list but had never been implemented.
Just live with this fact and stay up to date as long as the distro stayed around, using As a new version comes out, you'd manually do a fresh install and take care to copy any data and configurations forward to the new system. This tool essentially just collected your setups and the names of the packages you installed and would assist you in applying them to a new installation.
See @Joel Davis' answer for this technique as well.
However in looking up the description of what "rolling releases" actually means on wikipedia, I'm now more educated on the subject. a rolling release or rolling update development model refers to a continually developing software system; this is instead of a standard release development model which uses software versions that must be reinstalled over the previous version.
Rolling software, instead, is continually updated, in contrast to standard release software which is upgraded between versions. So from a purists standpoint, Debian, Ubuntu, Fedora, are not "rolling releases".