0.63  2021-03-08
    - Array::Heap is now recomanded instead of required
    - improved test coverage

0.62  2021-03-01
    - 5.8 compatibility
    - POD modifications

0.61  2021-02-25
    - POD fix

0.60  2021-02-25
    - First release on CPAN (module in use since 2008)