Release 4.0.3
-------------

Bug Fixes
^^^^^^^^^

    -   [SumTrees]: propagate ``-f``/``--frequency`` option to underlying summarization engine.
    -   [SumTrees]: ``-v``/``--ultrametricity-precision`` option takes numeric value.
    -   Exporting of characters from matrix suppresses cloned character subset definitions.

Release 4.0.2
-------------

Bug Fixes
^^^^^^^^^

    -   Adjustment of child edge lengths when collapsing basal bifurcations.

Release 4.0.1
-------------

Bug Fixes
^^^^^^^^^

    -   Fix for installing using in virtual environments under ``virtualenv``.

