Merge pull request #14085 from nextcloud/feat/dev/34-typed-query-builder

Author: provokateurin

developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_34.rst

@@ -55,7 +55,8 @@ Added Events
 Added APIs
 ^^^^^^^^^^
 
-- TBD
+- ``\OCP\DB\QueryBuilder\ITypedQueryBuilder`` is added in favour of ``\OCP\DB\QueryBuilder\IQueryBuilder`` and can be accessed through ``\OCP\IDBConnection::getTypedQueryBuilder``.
+  This query builder has the benefit of accurately returning the selected columns in a query result, increasing type safety.
 
 Changed APIs
 ^^^^^^^^^^^^