Right now it works only with the versions mentioned here http://redkit.cdprojektred.com/index.php?c=download, but there may be further support in the future.
Thats not completely correct. Max 2014 x64 also works with the 2013 plugins.
But a lot of things changed from 2012 to 2013, so I dont think 2013 plugins will work with it as well. But you can try^^