Changes and Releases

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

• Jun 30, 2026 Developer Portal backstage v0.145.0

  Added

  • (muster) Use shared Table and faceted filters for workflows list in #1857 by @marians

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.144.1...v0.145.0

• Jun 30, 2026 Connectivity coredns-app v1.31.0

  Changed

  • Standardize values.yaml comments to the # @schema / # -- (helm-docs) convention and remove section-header dividers, so values.schema.json and the chart README.md are generated from the values file. Rendered manifests are unchanged.

  Added

  • Wire up the full set of CoreDNS forward, cache, and kubernetes block parameters in the structured zone config:
    • forward: maxIdleConns, maxConnectAttempts, dohMethod, tls, tlsServername, next, nextOnNodata, failfastAllUnhealthyUpstreams, failover, resolver.
    • cache: zones, serveStale.verifyTimeout, disable.successZones, disable.denialZones.
    • kubernetes: endpoint, tls, kubeconfig, apiserverQPS, apiserverBurst, apiserverMaxInflight, namespaceLabels, fallthroughZones, multicluster, startupTimeout.

  Fixed

  • Render the health directive in only the . server block. The health plugin is process-wide and can be enabled in just one Server Block, so emitting it in every zone block was invalid. ready is kept in every block (its readiness is aggregated across blocks).
  • Correct the coredns.*.cache.serveStale.refreshMode schema enum to immediate/verify (was immediate/background), matching the CoreDNS cache plugin.

  Refactored

  • Restructure Helm chart values interface with a zone-aware coredns.* layout; all old paths remain backward compatible.
  • Add coredns.public.* for the forward zone: autopath and a structured forward map mirroring the CoreDNS forward block, including maxConcurrent (max_concurrent).
  • Migrate the CI test value files to the new coredns.* interface.
  • Add coredns.cluster.* for the in-cluster zone: domains, serviceCIDR, podCIDR, and a structured kubernetes map mirroring the CoreDNS kubernetes block.
  • Add coredns.custom.
  • Add controlPlane.*, securityContext.*, service.clusterIP, and ports.metrics.port.
  • Configure cache, log, and loadbalance per zone (coredns.public.*, coredns.cluster.*, and each coredns.additionalZones[].*), replacing the former global coredns.cache, coredns.log, and coredns.loadbalance (removed). A zone that omits them falls back to the deprecated paths, then to built-in defaults.
  • Replace coredns.additionalLocalZones (a list of zone-name strings) with coredns.additionalZones, a list of fully-templated zone objects. The deprecated top-level additionalLocalZones string list still renders as kubernetes zones, now inheriting the coredns.cluster.* cache, log, and loadbalance config.
• 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.

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