Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Sebastian Calonico <scalonico@ucdavis.edu>’
  
  New maintainer:
    Sebastian Calonico <scalonico@ucdavis.edu>
  Old maintainer(s):
    Sebastian Calonico <sebastian.calonico@columbia.edu>

No changes to worse in reverse depends.