Hmm, I seem to have two issues here.
Consistent crash across 40.03 and 40.04
Zoned a hospital before there were any beds. Injured dwarf crawled to the hospital zone and sat in the corner. Built a couple hospital beds, but no one will move him to one. They feed and water and diagnose him, but if you toggle surgery labor on someone and they attempt to fix his poor broken liver,
he teleports to a hospital table and the game crashes. Every single time. If no one attempts surgery, the game is fine. If anyone else needs surgery soon, I'll have to wall him off and let him die.
EDIT: Just found this one on the bug tracker. Wasn't there when I started writing this, sorry.Second issue is really WEIRD (and awesome) and might be a save compatibility problem?
Transferred my 40.03 save to 40.04, and now
tower-caps and fungiwood saplings in dirt rooms are growing and punching through the ceiling! Cut them down early enough, there's a single hole. If they grow even just a little bit of mushroom cap before cutting them down, then there's a huge hole about 5-6 tiles in diameter to the sunlit surface above! People were trying to sleep in the temporary dormitories and I quickly threw wood flooring over the hole. Then another one broke the surface, and another one, and another one... I couldn't keep up! It was hilarious! Finally, I resorted to flooring over the dirt wherever there were growing saplings and they died and it stopped. WHEW! LOL But, I guess that means I won't be having an underground pasture in this fort anytime soon.