order of validation execution

rubyonrails-talk
1

in which order are the validations executed that apply to the same attribute. Say I have this code in my model:

validates_presence_of :password validates_confirmation_of :password, :message => "must match confirm password", :if => Proc.new { |u| !u.password.blank? }

1) Are the validations executed in the order I coed them in the model's file? Or is it undetermined, and I should not rely on any order?

2) Is this behaviour the same in 2.x and 3.x?

thanks, ALex.