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Grafana Cloud

Release notes for Application Observability plugin 1.66

1.66.0

Released on 2025-11-10.

  • Activating Tempo metrics generation now uses native histograms by default
  • Add support for .NET 9 garbage collection runtime metrics
  • Fixed an issue where Filter by and Group by attribute updates weren’t saved when using the Otel collector with Tempo metrics generation
  • Fixed service overview tabs breaking when entity names contained unsupported characters

1.66.2

Released on 2025-11-14.

  • Fix: Make sure that Group by queries use the selected metrics datasource