Revision history for List-Util-MaybeXS

1.500003 - 2019-08-08
  - added TO_JSON method to pair object, as added in List::Util 1.51.

1.500002 - 2018-04-19
  - trigger codification overloads only once if used for callback
  - fix error report location if given a non-coderef
  - improve doc note about behavior of @_ in List::Util

1.500001 - 2018-04-02
  - only test against PP module, as testing MaybeXS is redundant
  - added test to ensure List::Util::MaybeXS and List::Util::PP have matching
    exports
  - better formatting of prereq version numbers
  - add correct Test::More dependency for developers
  - other minor test tweaks

1.50 - 2018-03-30
  - initial version
  - tests based on Scalar-List-Utils-1.50