This one doesn't make sense. If it's always continuous (1), why is the default 0? Why is this even listed if it's removed?
int collisionVolumeTest Default: 0 Removed in 90.0 (Now always continuous)
The type of test used to detect collisions. Can be 0 (discrete) or 1 (continuous). Use the latter for catching high speed projectiles which may otherwise 'skip through' small collision volumes, but beware of the increased performance cost.