So, I was reading the main FAQ and saw they'd mentioned not releasing patches for the game.
Q: I heard there was a new update of the game released. Where can I get it?
To get the latest version of the game, always download from playgreenhouse.com. New updates are not released as patches, but rather we replace the entire build with the newest version. When you visit the game page, you can simply click to download the demo, and install it directly on top of your old version without uninstalling. If you have already authorized your version, the new downloaded version will normally work without requiring re-authorization. Also note that the game is distributed on other sites but they may not have the latest version, so to be sure always check on Greenhouse for the latest.
Based on not releasing patches, is it safe to say that the Steam auto-update feature has not been keeping the game up to date? Is there any way to update our games that are installed via Steam?
I've tried to Install the most recent version available on playgreenhouse.com over my current installation in the location Steam installed it to but upon Launching the client, it asks me to Authorize my game rather than functioning normally as listed in the FAQ.