Someone on the Touhou subreddit said there will no longer be updates for a game called Mystia Izakaya

Here's the post link: https://www.reddit.com/r/touhou/comments/16i350v/bad_news_there_will_probably_be_no_more_mystia/

I know we're talking about the game and its updates, but why would there be no more updates for it?

As a post says, it's probably because of Unity changes