As you craft things, you get better at crafting them
Small changes concerning balance, gameplay, or graphics.
Furnaces, assembling machines, production chains.
O7
I'll take a look into this later this week. It should (hopefully) be very straightforward.
I've submitted a PR to your GH
welp.. this seems to be a pretty long week D:
you can easily fix this yourself in info.json, just change 2.0 to 2.1