Changes in version 1.37.3                        

SIGNIFICANT USER-VISIBLE CHANGES

    o   The package documentation has been updated.

                       Changes in version 1.31.2                        

SIGNIFICANT USER-VISIBLE CHANGES

    o   This package now depends on R (>= 3.5.0) because serialized objects in
	serialize/load version 3 cannot be read in older versions of R.

                       Changes in version 1.31.1                        

SIGNIFICANT USER-VISIBLE CHANGES

    o   The description field of the package is more detailed.