In 1.3 you could make an opening in a large wall tile by placing a small traversable tile on top of it. In 1.4 that behaviour has changed. Is the new behaviour considered a bug or a feature? I'm kind of biased in favour of the old behaviour since I've made a lot of explicit use of it.
Congratulations for releasing 1.4 by the way!
Congratulations for releasing 1.4 by the way!