Zope.interface

==================

- Drop support for Python 3.4.

- Change ``queryTaggedValue``, ``getTaggedValue``,
``getTaggedValueTags`` in interfaces. They now include inherited
values by following ``__bases__``. See `PR 144
<https://github.com/zopefoundation/zope.interface/pull/144>`_.

.. caution:: This may be a breaking change.

- Add support for Python 3.8.

==================

- Add support for Python 3.7

- Fix ``verifyObject`` for class objects with staticmethods on
Python 3. See `issue 126
<https://github.com/zopefoundation/zope.interface/issues/126>`_.

==================

- Drop support for 3.3, avoid accidental dependence breakage via setup.py.
See `PR 110 <https://github.com/zopefoundation/zope.interface/pull/110>`_.
- Allow registering and unregistering instance methods as listeners.
See `issue 12 <https://github.com/zopefoundation/zope.interface/issues/12>`_
and `PR 102 <https://github.com/zopefoundation/zope.interface/pull/102>`_.
- Synchronize and simplify zope/__init__.py. See `issue 114
<https://github.com/zopefoundation/zope.interface/issues/114>`_

==================

- Avoid exceptions when the ``__annotations__`` attribute is added to
interface definitions with Python 3.x type hints. See `issue 98
<https://github.com/zopefoundation/zope.interface/issues/98>`_.
- Fix the possibility of a rare crash in the C extension when
deallocating items. See `issue 100
<https://github.com/zopefoundation/zope.interface/issues/100>`_.

==================

- Fix a regression storing
``zope.component.persistentregistry.PersistentRegistry`` instances.
See `issue 85 <https://github.com/zopefoundation/zope.interface/issues/85>`_.

- Fix a regression that could lead to the utility registration cache
of ``Components`` getting out of sync. See `issue 93
<https://github.com/zopefoundation/zope.interface/issues/93>`_.

==================

- Simplify the caching of utility-registration data. In addition to
simplification, avoids spurious test failures when checking for
leaks in tests with persistent registries. See `pull 84
<https://github.com/zopefoundation/zope.interface/pull/84>`_.

- Raise ``ValueError`` when non-text names are passed to adapter registry
methods: prevents corruption of lookup caches.