Basscss went through some fundamental changes from v7 to v8, so fairly major changes were needed.
- different set of modules to install via npm
- new "basic" css to reset everything and it was recommended it be a separate file, rather than doing overrides
- svgs got weird, so adjusted their height and width to > 1rem
- new responsive utilities, so sm-hide and sm-show are changed
- new forms treatment so code had to be changed
v2.1.1
- updates to node modules