Python, Django, Ruby, Rails, Node.js, jQuery all have multi-version docs online. I'm sure there are plenty more examples. Yes, I do feel entitled to having support for outdated but still relevant software. This is standard.

The latest version of bootstrap only just got released. I think a majority of users will still find the old docs relevant, even weeks later.

Yes, I realise I can still download the docs. But it's more convenient for some people to have it hosted online.

While the attitude is a little entitled, there may still be a valid point for other users as well. Couldn't se properly crafted URLs on the homepage solve this problem? Like /tags/2.0/documentation/index.html [1]. And run it right off of bootstrap?

Edit: the point being that we can point links at pages from previous commits, branches, and tags Shouldn't this help?

[1] that URL was slightly bastardized but I'm sure someone could very quickly whip this up

Boy I was half asleep when I wrote that comment, all I was saying was that since github lets you reference previous versions of files by crafting the URL properly to include a tag/branch/hash, it should be possible to link to previous versions of the documentation straight from the latest version, eliminating the need for someone to clone the repo to access them.

Because I ask them to make a folder on their webserver and put the old docs there, which is going to take them all of 5 minutes?

Yes, sometimes people need to be reminded of basic common sense. I do feel entitled to that.