Yea and its committed to the github repository as 1.5.7 ( i'll put a download link below for manual testing if you would like to try it ) but I have not released it yet officially because I want to add in some "work in progress" items that are semi related ... e.g. turring on and off individual comment counts and a completed implementation of the template tags and shortcodes.
That said , 1.5.7 will likely never its self be released , the above work in progress items will be released as 1.5.8 or above ... so you can safely try 1.5.7 ( i'm running it on cloudhero.net for a week or so now ) and then when 1.5.8 is released it will just show as an update like normal.
If this all seems greek to you then my best suggestion would be to just wait for the 1.5.8 release officially that i have tentatively penciled in to push out late this weekend as long as I have no huge road-bumps between here and there :)'
https://github.com/bholtsclaw/comments-evolved ( for 1.5.7 unreleased testing )