Release notes for Grafana 9.1.3

Features and enhancements

API: Do not expose user input in datasource error responses. #53483, @papagian
Alerting: Write and Delete multiple alert instances. #54072, @joeblubaugh
Library Panel: Allow to delete them when deprecated. #54662, @ivanortegaalba
Plugins Catalog: Allow to filter plugins using special characters. #54474, @murtazaqa

Bug fixes

Alerting: Fix UI bug when setting custom notification policy group by. #54607, @JacobsonMT
AppRootPage: Fix issue navigating between two app plugin pages. #54519, @torkelo
Correlations: Use correct fallback handlers. #54511, @kalleep
FIX: RBAC prevents deleting empty snapshots (#54385). #54510, @gamab
LibraryElements: Fix inability to delete library panels under MySQL. #54600, @kaydelaney
Metrics: fix grafana_database_conn_* metrics, and add new go_sql_stats_* metrics as eventual replacement. #54405, @hairyhenderson
TestData DB: Fix node graph not showing when the Data type field is set to random. #54298, @CrypticSignal

Deprecations

The grafana_database_conn_* metrics are deprecated, and will be removed in a future version of Grafana. Use the go_sql_stats_* metrics instead. Issue #54405