16th of every month, as stated above. If you're a patron. It will be the 1st and 16th of every month.
I mean WHAT will be in the next update? Not on which day is the update coming. ;)
Oh, my bad. Check the patreon post. It will be tagged by which character got updated
Dont quote me on this but I think its Spencer Day 26 and Coach Day 29.
