I think the latest version I use was 10. At that time my main purpose was to convert my tapes and records to cd. But as a noise reduction tool, it was not all that great. Go ahead and try it..you will know what I mean. Of course newer version may use different method which may be better than what I had use (I don't know). As far as converting all my tapes and records to cd, it did the job for me ok.