ATTENTION! 

There was a huge review of the mods and its almost a completely different modpack, it is recommended to create another world to play versions post review (V5+)

Terrorifico removed shaders Cursed Fog, so it doesn't come with the modpack anymore.

Terrorifico now will launch updates with a different style in its name:

Terrorifico V(x.x)
ex: Terrorifico V5.1