Changes and Releases

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

• Sep 20, 2026 Developer Portal backstage v2.43.1

  Changed

  • (deps) Update ai-sdk packages in #2492 by @renovate[bot]

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.43.0...v2.43.1

• Sep 20, 2026 AI Agents klaus v0.1.24

  Changed

  • (deps) Update dependency @anthropic-ai/claude-code to v2.1.277 in #491 by @renovate[bot]

  Full Changelog: https://github.com/giantswarm/klaus/compare/v0.1.23...v0.1.24

• Sep 19, 2026 Security dex-app v3.2.2

  Fixed

  • A pre-defined static client (gitopsui, muster, mcpKubernetes, mcpCapi, mcpPrometheus) with both clientSecret and clientSecretRef uses the reference and ignores the inline value instead of failing the render: a client moves from an inline secret to a referenced Secret by adding the reference where the plaintext values live, even while the encrypted values still carry the old inline secret. The release notes (helm get notes) name such a client until the inline value is deleted. A client with neither is left out as in 3.2.1; dex-k8s-authenticator and extra static clients that are not public still need exactly one source.
• Sep 19, 2026 AI Agents agent-platform v4.49.0

  Added

  • The three upstream lines at their decoupled releases — kagent 1.0.0, Substrate 1.0.0, agentgateway 2.0.0 in full (#608) in #609 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.48.2...v4.49.0

• Sep 19, 2026 Developer Portal backstage v2.43.0

  Added

  • (agent-platform) Add GPU node pool stands still — every zone and no cache by default, no Teleport field, presets marked in the list in #2502 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.42.5...v2.43.0

• Sep 19, 2026 AI Agents agent-platform v4.48.2

  Fixed

  • (model-serving) Gemma-4-31b serves 8k on the 48 GB card — vLLM’s measured ceiling next to 31.7 GiB of weights; 32k returns with an fp8 KV cache once proven on the L40S (#591) in #612 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.48.1...v4.48.2

• Sep 19, 2026 Developer Portal backstage v2.42.5

  Fixed

  • (muster) The views wait for the fleet before saying no installation runs muster in #2500 by @marians

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.42.4...v2.42.5

• Sep 19, 2026 Developer Portal backstage v2.42.4

  Fixed

  • (agent-platform) Session details — the user’s messages carry the portal’s colour, and the way out of a lost runtime sits under the box in #2499 by @marians

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.42.3...v2.42.4

• Sep 19, 2026 AI Agents agent-platform v4.48.1

  Fixed

  • (model-serving) Gemma-4-31b serves 32k and qwen3-6-35b-a3b 16k on the 48 GB card — the 64k context needed 12 GiB of KV cache next to 31.7 GiB of weights and vLLM refused to start (#591) in #607 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.48.0...v4.48.1

• Sep 19, 2026 AI Agents agent-platform v4.48.0

  Added

  • The kagent line’s and the Substrate line’s charts from gsoci (#580) in #592 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.47.1...v4.48.0

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