Where can i get vagrant1.6.5 docs

hi, i am now useing vagrant 1.6.5 , and have search all places of website to find 1.6.5 Documentation about Vagrantfile config items, but get nothing.
does anybody knows where can i get this version’s Documentation ?

Here is an archive of the Vagrant documentation website from a time when Vagrant 1.6.5 was the current version.