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5.3.0 (2020-03-21) ================== - No changes from 5.3.0a1 5.3.0a1 (2021-03-18) ==================== - Improve the repr of ``zope.interface.Provides`` to remove ambiguity about what is being provided. This is especially helpful diagnosing IRO issues. - Allow subclasses of ``BaseAdapterRegistry`` (including ``AdapterRegistry`` and ``VerifyingAdapterRegistry``) to have control over the data structures. This allows persistent implementations such as those based on ZODB to choose more scalable options (e.g., BTrees instead of dicts). See `issue 224 <https://github.com/zopefoundation/zope.interface/issues/224>`_. - Fix a reference counting issue in ``BaseAdapterRegistry`` that could lead to references to interfaces being kept around even when all utilities/adapters/subscribers providing that interface have been removed. This is mostly an issue for persistent implementations. Note that this only corrects the issue moving forward, it does not solve any already corrupted reference counts. See `issue 227 <https://github.com/zopefoundation/zope.interface/issues/227>`_. - Add the method ``BaseAdapterRegistry.rebuild()``. This can be used to fix the reference counting issue mentioned above, as well as to update the data structures when custom data types have changed. - Add the interface method ``IAdapterRegistry.subscribed()`` and implementation ``BaseAdapterRegistry.subscribed()`` for querying directly registered subscribers. See `issue 230 <https://github.com/zopefoundation/zope.interface/issues/230>`_. - Add the maintenance method ``Components.rebuildUtilityRegistryFromLocalCache()``. Most users will not need this, but it can be useful if the ``Components.utilities`` registry is suspected to be out of sync with the ``Components`` object itself (this might happen to persistent ``Components`` implementations in the face of bugs). - Fix the ``Provides`` and ``ClassProvides`` descriptors to stop allowing redundant interfaces (those already implemented by the underlying class or meta class) to produce an inconsistent resolution order. This is similar to the change in ``@implementer`` in 5.1.0, and resolves inconsistent resolution orders with ``zope.proxy`` and ``zope.location``. See `issue 207 <https://github.com/zopefoundation/zope.interface/issues/207>`_.
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