- Rename \<thing>_case:nnn to \<thing>_case:nnF and introduce
\<thing>_case:nn, \<thing>_case:nnT and \<thing>_case:nnTF
- Add concept of key groups to l3keys, allowing selective setting
of keys with the same 'path'
- Remove .code:x and .meta:x key properties
- Internal changes to seq and prop structures, allowing faster
\prop_map_inline:Nn
--
Joseph Wright