Changes and Releases

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

• Jun 30, 2026 AI Agents muster v0.21.1

  Fixed

  • (deps) Update module github.com/jedib0t/go-pretty/v6 to v6.8.2 in #934 by @renovate[bot]

  Full Changelog: https://github.com/giantswarm/muster/compare/v0.21.0...v0.21.1

• Jun 30, 2026 AI Agents muster v0.21.0

  Added

  • (oauth) Remove github-app broker target type in #935 by @QuentinBisson

  Full Changelog: https://github.com/giantswarm/muster/compare/v0.20.0...v0.21.0

• Jun 30, 2026 Developer Portal backstage v0.144.1

  Changed

  • (deps) Update dependency ai to v6.0.206 in #1855 by @renovate[bot]

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.144.0...v0.144.1

• Jun 30, 2026 AI Agents klaus v0.0.252

  Changed

  • (deps) Update dependency @anthropic-ai/claude-code to v2.1.196 in #382 by @renovate[bot]

  Full Changelog: https://github.com/giantswarm/klaus/compare/v0.0.251...v0.0.252

• Jun 29, 2026 Developer Portal backstage v0.144.0

  Added

  • (muster) Align section with NFS shell and use modern BUI tabs in #1854 by @marians

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.143.7...v0.144.0

• 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

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