- Add support for Python 3.7, 3.8, 3.9, 3.10, 3.11.
- Drop support for ``zope.app.skins`` which is deprecated since 2006.
4.0.1
------------------
- Remove long-deprecated <browser:layer> configuration which was hidden behind a ``have deprecatedlayers`` condition. That directive simply doesn't exist any longer and defining that feature would cause an "Unknown directive" ConfigurationError.
4.0.0
------------------
- Remove test dependency on ``zope.app.zcmlfiles``, ``zope.app.testing`` and several others. - The ``zope.app.form`` dependency has been replaced with ``zope.formlib``. - Add support for PyPy, Python 3.4, 3.5 and 3.6.
3.5.3
------------------
- Replaced an undeclared test dependency on ``zope.app.authentication`` with ``zope.password``.
- Replaced an undeclared test dependency on ``zope.app.folder`` with ``zope.site``.
3.5.2
------------------
- Removed not needed test dependency on ``zope.app.zptpage``.
- Replaced test dependency on ``zope.app.securitypolicy`` by ``zope.securitypolicy``.
- Using Python's ``doctest`` instead of deprecated ``zope.testing.doctest``.