Since the new version i can no longer change the sorting by clicking on the columns. Also the menu of File/sort is greyed out (not active). Have i missed a new feature/behaviour?

Are you perhaps trying to reorder a force-sorted autoplaylist?

I am not sure, because i have never made this. I have used %RATING IS "0" in the the search function to create the list. Has worked fine with sorting and everything else till i made the update. See also the post from me today about the autplaylist. No changes made at the PC meanwhile, so i think i have a problem with foobar.