Server Crashed and no we dont know when it will be back up Online.
Just wait and check: https://project-sato.net/statuschecker/
Shouldnt take that long.
Important stuff is here: https://pokemonrevolution.net/forum/viewforum.php?f=14
I dont think theres a Update log. But if u want to know:
New is the Halloween Event and the PvP Ranked System.
Hey,
Nope you cant play on the Old version because some new stuff got addet. All other versions are up, u need to wait until 31 for the android version :/
Im Sorry
Greatz