Seems the latest version (0.34.08) of Dwarf Fortress has been released over at Bay 12 Games.

This version belies its miniscule version bump by adding a whole new toy to play with: minecarts. I can't wait to get time to see what fun can be had with these, the devblogs have teased with the possibilities as usual:

05/10/2012 Toady One: The items and units fly out of carts now on major collisions. It gives the objects a little lift and spread sometimes to make the happenings more entertaining. Accidental grapeshotting of the dining room should be possible now. The debug tests on massed goblins were fairly devastating and left a large conical skidmark.

I foresee many (probably failed) attempts to create an anti-goblin minecart shotgun in my future.