The official release of alpha 5.4 fixes some common problems and crashes.
I've noticed there is a small chance that the mac build will crash on launch. I've narrowed it down to a bug in the Steam overlay, so I'll try updating it when I get the chance. There is not much else I can do, as it's seemingly a random occurrence, some race condition, I assume.
The next update will be small and wrap up alpha 5. I will begin work on alpha 6, which will have a lot of save breaking updates, so the first update might be delayed such that I can get all save breaking changes in at once.
I'm also planning on researching ways to revamp the room building system, so rooms can have any shape. It might not work, so don't get your hopes up, but if it does, alpha 6 will be delayed. I will keep you posted on Twitter, @softwareincgame .