- Fix insidious buildout configuration bug that prevented tests on Python 2.7 and 3.5, and fix test code that was incompatible with Python 3.5. (`44 <https://github.com/zopefoundation/DateTime/issues/44>`_)
- Add support for Python 3.11.
4.7
----------------
- Fix rounding problem with `DateTime` addition beyond the year 2038 (`41 <https://github.com/zopefoundation/DateTime/issues/41>`_)
4.6
----------------
- Fix ``__format__`` method for DateTime objects (`39 <https://github.com/zopefoundation/DateTime/issues/39>`_)
4.5
----------------
- Add ``__format__`` method for DateTime objects (`35 <https://github.com/zopefoundation/DateTime/issues/35>`_)
4.4
----------------
- Fix WAT definition `31 <https://github.com/zopefoundation/DateTime/issues/31>`_.