I was unaware of that. On another note, I didn't see any folders for the new yaks in my sounds folder, so I created two folders named "YAK3" and "YAK7B" in the sounds folder and copied my sounds from the Yak9U into those folders and it works in-game, except for the fact that when I click on the Yak3 or 7b in the hangar I get a pop-up box stating, "Unable to open settings/planes/yak3.pwl." The problem persists when the folders are deleted.
Edit: Reinstalled the patch and working fine.