--- features: - The public APIs from ``neutron.db.api`` are now available in the ``neutron_lib.db.api`` module. - The ``CONTEXT_READER`` and ``CONTEXT_WRITER`` global database contexts are available in ``neutron_lib.db.api`` for convenient access as decorators. - The ``DBRetryErrorsFixture`` and ``DBAPIContextManagerFixture`` test fixtures are now available in ``neutron_lib.fixture`` allowing consumers to patch out retry error values and the gobal context manager. upgrade: - Consumers using the global ``context_manager`` from ``neutron.db.api`` should now use the ``get_context_manager()`` function in the ``neutron_lib.db.api`` module or the global ``CONTEXT_READER`` and ``CONTEXT_WRITER`` if needed.