User blog comment:SanjayBeast/Can someone explain the effects of the patch that has just been released?/@comment-38762-20120530170347

The headshot hitbox of Geth Primes were removed (as originally intended), so shooting the head is the same as shooting other parts.

Altases used to take up to 2x damage if shot with any weapon at the canopy with piercing mods or AP.

Armoured reapers are intended to be immune to headshots. Originally the Kishock could headshot them, resulting in 300% damage.