It is released, check the first post for a download link. :U
That said, however, the version me and Chartle have right now is significantly ahead of the latest public version, but it's not without its fair share of quirks and missing things (for one, the second boss is a bit iffy at higher frame rates). Besides, i'm sticking with the plan of having done the previously mentioned major features before releasing, but i'm pretty sure it'll be worth the wait. Or so i hope, anyways. Might hold the skill tree for the subsequent update if it takes too long, but i'm hoping that won't be the case, since there aren't actually a lot of gameplay changes since the last update.

Also, pretty cool concept you got there. The controls oughta be a smidge more responsive though. :U