Ubuntu has delayed itself in the past, but there's been a few releases in the last couple years where they said "We know its broken. But the updates are coming down." So instead of just pushing the release a week or so they instead make everyone install with broken install images, then download launch day patches to fix things. It was when they started doing things like that, that I moved onto Arch and Fedora lol
Yeah, that's what I was referring to. I think I recall in particular that 10.04 had some controversial problems that weren't fixed for awhile, but I don't remember exactly what.