When installing the mod over Mac (both BG2 and the EE) and BG2:EE, be sure no mods installed after this one actually add any piece of dialog (or scripts) which uses Yoshimo's death variable--they won't work, since it's changed to make him stay in ToB.
If you are worried about other mods' changes to your game, don't worry, this mod patches all (well, almost, since new items introduced by this mod aren't patched

Users installing over Windows-BG2 don't have to worry about this (since it does like the old versions and patches BGMain.exe).