29th September to get the higher tiers; 31st October for everything else.
On an unrelated note, does anyone else think that gaining new Weapon Proficiencies at level up is going to be indifferent/useless for the Devoted subclass? Since the class gets penalties for using any weapon other than their favored, all they really need is the proficiency they take at first level, which is going to be for their favored weapon. At that point, reaching levels that grant extra proficiencies is going to get Devoted less bang for their buck compared to every other class.
Can comeone explain what does this mean exactly?