IF YOU'VE USED THE MOD BEFORE, DELETE YOUR EXISTING bettermineshafts/1_16 DIRECTORY!
Many of you ran Better Mineshafts 2.0 with an old version of YUNG's API, resulting in some corruption to your bettermineshafts config folder. Please delete that directory before running this version to ensure your config files are fixed!
This version properly requires users to have YUNG's API v1.16.4-Forge-3 in order to prevent such config corruption.
For more information on the JSON-related crashes and issues from the previous version, see this GitHub issue: https://github.com/yungnickyoung/YUNGs-Better-Mineshafts/issues/39#issuecomment-764189914