Since this update is just a foundation for next ones to come, i am willing to accept most of the nerfs it brings for future's sake(except the water purifier and few others).But PLEASE at least give us a way to change/reset our perks for free(at least for once!!)since the update changed perks and/or elements affected by them, making some of the current choices nonviable and stuck with them. I can't endure seeing my perks that i spent years to plan be useless and stuck with!You owe us this much.