the last update, 0.4test version came a month ago.
i wouldn't call bugfix (0.4version from mid August-a few weeks ago) as a proper update.
the next update based on developing schedule/cycles should come late October or so.
one thing that still amazes me is that not so long ago, speaking in general, similar games were rare and those had updates every month regularly...nowadays there are zillion of such games, and most of them have few updates per year (if not less), while supporters patiently waiting/pledging and considering an update which came 2-3 months ago, as "the update just came" in their reply to those asking for update...
this last paragraph isn't related to this game (yet?), it's more like my morning ranting on "developing-supporting" trends