Leaving DNA: Episode Four will be released on Steam on Tuesday, February 4th. I'll post an episode changelog on the 4th, but the game now features nearly 10,000 still renders with over 100 lewd animations. There are over 110,000 words of dialogue for Episodes One through Four.
If you have already purchased the game on Steam, the new episode is already included with your purchase. All you will have to do is login and the Steam client will automatically update your game.
I do need to make you aware of one bug I found and have fixed for Episode Four. Remember this choice back in Episode Two?
Unfortunately, due to a typo in my coding, the game did not save your choice for this menu. If you are only interested in dating one of the four LI's, then don't worry about this--she doesn't do much regardless of what you chose. But if you are interested in getting to know her a little better then you will need to reload a save from the very beginning of Episode Two or end of Episode One to make this choice again. Remember that in any Ren'py game you can press and hold "CTRL" to quickly skip through content you have already seen. I apologize for the bug.
I will talk to you on February 4th and thank you very much for your patience!
--Monk