Focus auto transmission issues

I was interested in purchasing a Ford Focus Trend with a build date of Sept 2014, but I was horrified to read the literally thousands of articles and posts about the dual- clutch transmission issues people are having and the seemingly poor after sales service from Ford on the matter. At a Ford dealership I was asking specifically for a manual because of this, but the salesman 'assures' me that the issue is only a problem up to early 2014 builds. I still see articles related to this issue with 2014 Focuses, therefore I'm skeptical. As far as I can tell it’s still the same transmission, but I don't know if there is anyway to verify that Ford made some manufacturing change that fixed the issue at some point.