spatialsample 0.2.1

• Mike Mahoney is taking over as package maintainer, as Julia Silge (who remains
  a package author) moves to focus on ModelOps work.

• Functions will now return rsplits without out_id, like most rsample
  functions, whenever buffer is NULL.

• spatial_block_cv(), spatial_buffer_vfold_cv(), and buffering now support
  using sf or sfc objects with a missing CRS. The assumption is that data in an
  NA CRS is projected, with all distance values in the same unit as the
  projection. Trying to use alternative units will fail. Set a CRS if these
  assumptions aren't correct.

• spatial_buffer_vfold_cv() and buffering no longer support tibble or
  data.frame inputs (they now require sf or sfc objects). It was not easy to
  use these to begin with, but should have always caused an error: use
  rsample::vfold_cv() instead or transform your data into an sf object.

• spatial_buffer_vfold_cv() has had some attribute changes to match rsample:

  • strata attribute is now the name of the column used for stratification,
    or not set if there was no stratification.
  • pool and breaks have been added as attributes
  • radius and buffer are now set to 0 if they were passed as NULL.