If this is a joke, then I apologize, but if not: my guy, look at the "Development log" part of the page. There's literally been updates every week for at least the past 2 months.
Viewing post in Sweet Summer Harem! (NSFW 18+) comments
I get that too. Unfortunately even though I follow so many devs, they don't appear in my feed unless i'm actively checking their page all the time anyway. I wish itch.io would update their website so that you have the option of choosing what specifically shows up in your feed (For example, I don't want devlogs or changelogs in my feed, but i'd like to know when the downloads for a game has changed.) and make sure it ALL does, even if you're not active.