24 Dec 2015
I am currently using WSJT-X V1.6 on 472kHz WSPR. It seems to work "right out of the tin" for me and I have both uploaded WSPR spots and been spotted on WSPRnet using the new software. As yet, because of family and Christmas, I have not yet tried it on JT65 or JT9-1 2-way modes. It is too early to tell how much better it is than the older WSPR packages, but others have reported better MF sensitivity with it.