1.) Turrets no longer proc Aery, Dark Harvest, or Rylais.
2.) RQ turrets cannon attack (AA) don't scale with AP. This means at rank 1 it will only do 40 damage per hit. Tested this in practice tool with 1022 AP Rank 3 Q does 159 damage while RQ rank 1 only does 40 per auto. Makes RQ even more of a joke to use.
3.) Only the first rocket hit can proc Dark Harvest. This means if someone is at 59% HP and each does 10% HP Damage it doesn't matter if the other 4 hit as it simply will not proc.