Pretty simple question really: does the game have any specific day of the month or something similar when he releases new updates, (Kinda like with Dawn Chorus, who clearly display when new updates are gonna be dropping) or do the updates come out as soon as the Patreon version is finished?

After the Patreon's version done, the previous one will be publicized, normally within the last  (or next to last) week of a month, but if there's any delay then Kul would announce it beforehand (the last one was 1 month later the announcement of delay, though)