No pay, no update <shrugs>
Truth is, current build (0.5.0.3.1) was quite a big of an update compared to the previous one (0.4.4.2.1), and it dropped not so long ago, around 16th of March
Dev is working solo, it takes time to do art, animation, code, lore, scripts etc., but he drops occasionally updates regarding his work, such as this post, where he even roughly estimated the date of next public patch.
Don't get me wrong, but subsbcriptions are currently his only source of income, he left his real job for this project, so you get what I mean.
Cheers