yes.
when one park increases tickets, the others usually follow.
last increase for the annual passes was march 1st this year.
(i am assuming tickets also increased somewhere in that time range)
i haven't bought tickets in many years but do remember reading threads about the last increase this year.
UO no longer sells the multiday passes like they did a year ago.
they have the 3 day passes now besides the 2 day and single day.