I have YAF already for several years running on my site. Now I created another site, but this is a DNN website. I have DNN 7, but the YAF download says that it is for DNN 5.x.

My question is: Is the most recent release download for DNN 5.x also suitable for DNN 7?

If yes, perferct, I will install it right away.
If not, are there plans to get it to work for DNN 7?

The 5.x should read 5.x+ it works on any DNN 5 or greater. I am currently running it on DNN 7.0.2