+ - `CPS-2019 <https://jira.onap.org/browse/CPS-2019>`_ Improve performance of saving CM handles.
+
+Notes
+-----
+ - Java API method CpsDataService::saveListElementsBatch has been removed as part of CPS-2019.
+
+Known Limitations, Issues and Workarounds
+-----------------------------------------
+
+*System Limitations*
+
+For upgrading, CPS uses Liquibase for database upgrades. In order to enable Hibernate write batching
+(`CPS-1795 <https://jira.onap.org/browse/CPS-1795>`_), a change to the database entity ID generation is required.
+As such, *this release does not fully support In-Service Software Upgrade* - CPS will not store new DataNodes and
+NCMP will not register new CM-handles during an upgrade with old and new versions of CPS running concurrently.
+Other operations (read, update, delete) are not impacted.