User blog comment:Emptylord/Season 3 - PBE Patch Notes/@comment-88.74.96.118-20121111175131/@comment-3974211-20121111181042

It's not a QSS nerf, it's a Malzahar buff (technically a bugfix, since Malzahar was already behaving like this against Gangplank and Alistar). QSS has always behaved like this.