It seems like it does not work for 3.4.X, but it hasn't specifically been updated for 3.4.X either.
I know that Pete has been inactive from IPB for a little while. I am wondering if he has any intention of updating this. Or possibly making a new version of it? It would be nice if this could be extended so that moderators give a reason when they move a topic as well. But that might be kind of a pain if they have to mass move topics.