That's actually a list of git tags (http://learn.github.com/p/tagging.html http://learn.github.com/p/tagging.html), and they're on the current site, e.g. https:

That's actually a list of git tags (http://learn.github.com/p/tagging.html http://learn.github.com/p/tagging.html), and they're on the current site, e.g. https://github.com/thoughtbot/factory_girl/tags https://github.com/thoughtbot/factory_girl/tags