trust center

There is this docs page http://docs.e-signlive.com/doku.php?id=esl:api:e-signlive_rest-api-routes but there I can see only some mentions about 10.6 and 10.7, although the header contains 10.10. On some forum topics reply I was told to use version 11. I would like to find some page where all supported versions would be listed (with changelist for them). If not possible, there should be at least some place where the current version is shown.