Every two years or so, Debian puts out a new “stable” release. This is my favorite distribution because of the minimal number of bugs and the huge software repositories and the powerful package manager. More here
Even though I’m jumping the gun on my upgrades, I still believe the release work that the Debian teams do is extremely valuable. Their drive for quality improves the bug state of the entire open-source world, and they deserve praise for getting Squeeze into position for a stable release.