Changes and Releases

Updates on Giant Swarm workload cluster releases, apps, UI improvements and documentation changes.

• Jun 29, 2026 Observability observability-bundle v3.2.0

  Changed

  • Update kube-prometheus-stack and prometheus-operator-crd to 22.0.0
  • Update alloy-app to 0.21.0
• Jun 29, 2026 Developer Portal backstage v0.143.7

  Changed

  • Add ci:lint script, compose it into ci:verify in #1853 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.143.6...v0.143.7

• Jun 29, 2026 Observability kube-prometheus-stack-app v22.0.0

  Changed

  • Upgraded chart dependency to kube-prometheus-stack-87.3.0 (from 85.2.1)
    • prometheus-operator to 0.92.0 (via 0.91.0)
    • alertmanager image tag from v0.32.1 to v0.33.0
    • prometheus image tag from v3.11.3-distroless to v3.12.0-distroless
    • grafana subchart from 12.3.3 to 12.7.1
    • kube-state-metrics subchart from 7.4.0 to 7.5.1
    • kube-webhook-certgen image tag from 1.8.3 to 1.8.4
    • Refreshed bundled default Prometheus alerting/recording rules and Grafana dashboards.
    • prometheus.prometheusSpec.containers and initContainers are now rendered through tpl (87.3.0), so templated values inside them are evaluated. We do not set these values, so no impact.

  Note: Update the matching-major prometheus-operator-crd app (to the v0.92.0 CRDs) before/alongside this upgrade. The PrometheusTopologySharding and PrometheusShardRetentionPolicy feature gates are now enabled by default in v0.92.0.

• Jun 29, 2026 Observability prometheus-operator-app v22.0.0

  Changed

  • Upgraded chart dependency to kube-prometheus-stack-87.3.0 (from 85.2.1)
    • prometheus-operator to 0.92.0 (via 0.91.0)
    • alertmanager image tag from v0.32.1 to v0.33.0
    • prometheus image tag from v3.11.3-distroless to v3.12.0-distroless
    • grafana subchart from 12.3.3 to 12.7.1
    • kube-state-metrics subchart from 7.4.0 to 7.5.1
    • kube-webhook-certgen image tag from 1.8.3 to 1.8.4
    • Refreshed bundled default Prometheus alerting/recording rules and Grafana dashboards.
    • prometheus.prometheusSpec.containers and initContainers are now rendered through tpl (87.3.0), so templated values inside them are evaluated. We do not set these values, so no impact.

  Note: Update the matching-major prometheus-operator-crd app (to the v0.92.0 CRDs) before/alongside this upgrade. The PrometheusTopologySharding and PrometheusShardRetentionPolicy feature gates are now enabled by default in v0.92.0.

• Jun 29, 2026 AI Agents muster v0.20.0

  Added

  • (workflow) Durable workflow execution tracking (#930) in #933 by @teemow

  Full Changelog: https://github.com/giantswarm/muster/compare/v0.19.7...v0.20.0

• Jun 29, 2026 Observability alloy-app v0.21.0

  Changed

  • Upgrade Alloy upstream chart from 1.8.2 to 1.10.0 (CHANGELOG)
    • This bumps the version of Alloy from 1.16.1 to 1.17.0 (CHANGELOG), which includes several CVE fixes and a fix for cluster nodes failing to join when TLS is enabled.
    • Adds opt-in controller.autoscaling.horizontal.externalHPA (externally-managed HPAs, e.g. KEDA) and service.externalTrafficPolicy values. Neither is enabled in our defaults.
• Jun 29, 2026 Developer Portal backstage v0.143.6

  Fixed

  • (muster) Iteration-2 truthfulness & coherence fixes in #1852 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.143.5...v0.143.6

• Jun 29, 2026 Observability observability-bundle v3.1.0

  Changed

  • HelmReleases: honor the App platform priority field (1-150, default 25) on extraConfigs entries. spec.valuesFrom now reproduces the App platform merge order — all configMaps before all secrets (a secret always overrides a configMap), each kind ordered by priority around the user-config layer — preserving the App CR merge semantics after the migration. (giantswarm#36096)
• Jun 29, 2026 AI Agents muster v0.19.7

  Fixed

  • (metatools) Weight name matches and down-weight ubiquitous verbs in filter_tools ranking in #932 by @teemow

  Full Changelog: https://github.com/giantswarm/muster/compare/v0.19.6...v0.19.7

• Jun 29, 2026 Developer Portal backstage v0.143.5

  Changed

  • (renovate) Hold global-agent on v3 (v4 is ESM-only, breaks backend) in #1848 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.143.4...v0.143.5

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