After #349 is merged, I would like to release the next version possibly v2.2.0.
I think the corrections of Hall symbols (#317) deserve minor change (v2.2.0), not patch change (v.2.1.1).
@LecrisUT @atztogo do you have any ongoing PRs to be included in the next version?
If not, I will write a release note and a corresponding PR so far.

Remained TODOs

• fix: Fortran pkg-config file #357
• Fix order of primitive basis for get_magnetic_symmetry #371