Changes and Releases

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

• Sep 16, 2026 AI Agents agent-platform v4.28.9

  Fixed

  • (connectivity) The two L4 presets fit the smallest L4 instance — qwen3-4b-instruct and qwen3-8b-fp8 request 2 vCPU / 10 GiB (were 4 / 16Gi), limits 4 / 12Gi; verify-serving-slice holds the requests within what a g6.xlarge leaves a predictor (giantswarm/agent-platform#502) in #503 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.28.8...v4.28.9

• Sep 16, 2026 AI Agents agent-platform v4.28.8

  Fixed

  • (chart) The Substrate worker image follows the chart’s Substrate pin, never the kagent build’s stamp in #500 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.28.7...v4.28.8

• Sep 16, 2026 AI Agents agent-platform v4.28.7

  Changed

  • (verify-target) Drop the golden-side klausGateway.crd hold — origin/main carries #497, so nulling the key there inserted crd: null and made the meta default render drift in #501 by @fiunchinho

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.28.6...v4.28.7

• Sep 16, 2026 AI Agents agent-platform v4.28.6

  Fixed

  • (klaus-gateway) Stop setting klausGateway.crd.install; the gateway’s API-server egress covers the Secret link store only in #497 by @fiunchinho

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.28.5...v4.28.6

• Sep 16, 2026 AI Agents agent-platform v4.28.5

  Fixed

  • (connectivity) A PolicyException lets the serving predictors through the fleet’s restricted Pod Security Standard in #499 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.28.4...v4.28.5

• Sep 16, 2026 AI Agents agent-platform v4.28.4

  Fixed

  • (connectivity) The agentgateway controller admits xDS from every data plane of its GatewayClass in any namespace in #496 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.28.3...v4.28.4

• Sep 16, 2026 Developer Portal backstage v2.8.2

  Fixed

  • (chart) Default memory limit 1Gi with a 512Mi request; 600Mi OOM-killed the backend under the e2e suite in #2397 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.8.1...v2.8.2

• Sep 16, 2026 AI Agents agent-platform v4.28.3

  Fixed

  • (connectivity) The models Gateway’s data plane gets AgentgatewayParameters and the external-dns filter; model-manager’s hub egress renders with cluster-manager on in #493 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.28.2...v4.28.3

• Sep 16, 2026 AI Agents muster v5.25.1

  Fixed

  • Recovery ends in Auth Required for an OAuth-protected server’s 401, not RecoveryFailed in #1267 by @teemow

  Full Changelog: https://github.com/giantswarm/muster/compare/v5.25.0...v5.25.1

• Sep 16, 2026 AI Agents agent-platform v4.28.2

  Fixed

  • (connectivity) ValidateIngress requires the muster route’s Gateway and the muster-direct agentgateway agreement only while muster is on, so the serving slice renders without an edge in #491 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.28.1...v4.28.2

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