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Document behavior changes of dbal 3.0 to 3.1 upgrade

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Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>
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Christoph Wurst 2022-11-14 10:18:58 +01:00 committed by backportbot-nextcloud[bot]
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developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_23.rst
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@ -23,3 +23,10 @@ Deprecated APIs
* ``\OCP\Calendar\IManager::getCalendars``: use :ref:`the new calendar API<calendar-access>`
* ``\OCP\Calendar\IManager::clear``: there is no replacement
Updated core libraries
^^^^^^^^^^^^^^^^^^^^^^
``doctrine/dbal``
*****************
The Doctrine Database Abstraction Layer (dbal) powers Nextcloud's database connection and query builder. In Nextcloud 23 this dependency was updated from 3.0 to 3.1. As a consequence the ``\OC\DB\QueryBuilder\QueryBuilder::getFirstResult`` method now returns ``0`` instead of ``null`` if ``\OC\DB\QueryBuilder\QueryBuilder::setFirstResult`` wasn't called.