when you go into the game it will have an update thing in bottom left corner click on it then it leads you to clone drone page at the top there will be a download thing click on it then click on the type of computer you have (Mac or Windows) then you download the newest version
tbh....I didn't realize itch had an app and I was just running the game out of the folder on my computer forever XD.....Well....I feel kinda dumb....Lol