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# 49 Upgrade notes for 6.0.39

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## Breaking changes

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#### MSSQL Zabbix agent 2 plugin update

The template [MSSQL by Zabbix agent 2](https://git.zabbix.com/projects/ZBX/repos/zabbix/browse/templates/db/mssql_agent2?at=refs%2Fheads%2Frelease%2F6.0) has been updated with filters to include or exclude discovered quorum members by name as well as a service filter that allows filtering by cluster name to exclude empty clusters. To have the template work without errors, the [MSSQL Zabbix agent 2 plugin](/manual/appendix/config/zabbix_agent2_plugins/mssql_plugin) must be updated to a version equal to or above 6.0.39.

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