Do you know if the Birthday from the King before Bhumibol Adulyadej was also phased in?
Here many places still have pictures of him instead of his son though.
The little movie they show of the king when you go to the cinema is also a bit weired still. With the knew king they had all those real pictures. With the new king he is photoshopped in, in all the pictures which kinds of tells me there are not enough pictures yet with him and his people to make such a short film
the previous king held the throne for a massive 70 years. During the beginning of his reign his father's birthday might have been honored as well for a while, but I have not actual records of this ever having happened.