Seeing as the author has thrown a fit when it leaked last, and looked here, I doubt anyone is going to update it here.
it'd only be safe to leak it here once he's done, as he has threatened to quit if it happens again.
If you want to make sure he finishes it, I guess cough up the $10 (edit: I misremembered, it's 5$ which is really a bargain*) which access to development version costs. Soon-ish he's going to release 0.7.
I'd really wait till he's done and just buy it. Unlike some games that are kinda lame and cost more (Gain of Life, for example), this one's fairly extensive, reasonably bug free and so on.
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edit:
*having played 0.6, I confidently say to us niche pervs this game is worth at least $20. Certainly, if it were finished it'd be. Nothing else like it out there.