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Release 0.67
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* Fix resource leak in Hive connector

* Improve error categorization in event logging

* Fix planning issue with certain queries using window functions

SPI changes
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The ``ConnectorSplitSource`` interface now extends ``Closeable``.

.. note::
    This is a backwards incompatible change to ``ConnectorSplitSource`` in the SPI,
    so if you have written a connector, you will need to update your code before
    deploying this release.