Lava doesn't seem to be generating at the bottom of the underground and instead, there's basalt rock everywhere. Is it intended or a bug?
It's a fantastic update but unfortunately also seems to change the previous worldgen completely, making all the old seeds useless; I will miss my previous, beautiful world. The new upheaval features are definitely great and seem to be introducing a lot more variety to the terrain, yet at the same time - from what I've managed to see so far while test traveling - I have a feeling it kind of stretches land planes exponentially, creating either gigantic and huge mountain ranges or vast, but completely flat fields. All in all, it seems like the world is more empty and there's much less overall variety in comparison to what I've been used to. Either way, it's really difficult to tell at this point, but I guess a little bit more explanation on how worldgen works right now would definitely help! That said, the sole fact everything is still tweakable is just great, I highly appreciate that.
Keep up the great work!