It actually has Vault, Terraform, and Nomad in the Projects Emeriti section at the bottom. They just never edited the original article. It appears Inkscape was the longest holdout, and went 19.7 years before finally releasing 1.0, though that's only of projects that did make the cutover. Some chemical process modeling software out of CMU called "Ascend" has been proudly avoiding 1.0 since 1978. I'm not sure how to get it as their website no longer seems to work, but apparently they were part of Google Summer of Code five times.