It does, up to 15 blocks, like a regular light source.
Vanilla already does that. I think Cubic chunks' issue is more about when blocks move around far above in unloaded chunks.
Whatever, the editor just doesn't work. The first quote is supposed to say: "If I'm not mistaken, sunlight does not travel horizontally, only vertically."
The first quote is meant to say "If I'm not mistaken, sunlight does not travel horizontally, only vertically.", but apparently the editor here just never works. I even tried to post it again in a new reply and it just discarded my message completely, after first appearing like it posted a duplicate of the previous one. This forum really needs some bugfixes.
What? Does it append to my previous message? Can anyone else see this?