I'm really sorry about this, but I still haven't managed to get the preview version of v0.4.4.5 into a state that's ready for release. I ended up changing some aspects of the next stage of the main quest, and that's set me back a little. I'd better not give another fixed release date to avoid more disappointment, but I really should be able to get this preview version released within the next few days. I'm really sorry again, and my next post will definitely be the release post, so I'll see you there very soon!
Edit (Sunday, 24th): Thank you all so much for your patience; I've been a little stuck on how best to implement some of the content for this next stage of the main quest, but I really am almost done now. It shouldn't be too much longer!