0.2.0 2020-08-19

    - Added support for colored edges.
    - Fixed a typo in POD.
    - Added ppport.h (GH#1).

0.1.2 2020-08-11

    - orbits() now accepts additional ordering subroutine-parameter to
      order nodes of the same color in order to remove a source of
      nondeterminism.
    - Automatically generating minimum Perl version (GH#4).

0.1.1 2020-05-09

    - Added are_isomorphic().
    - Removed a source of nondeterminism of Graph::neighbours() (GH#2).
    - Initializing empty arrays (GH#3).

0.1.0 2020-05-01

    - Initial release.
