Changes and Releases

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

• Sep 14, 2026 AI Agents agent-platform v4.12.3

  Fixed

  • (meta) Muster-valkey gets a memory bound of its own — maxmemory 640mb, volatile-lru (#446) in #447 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.12.2...v4.12.3

• Sep 14, 2026 AI Agents agent-platform v4.12.2

  Fixed

  • (connectivity) The actors’ egress opens the host model servers model-manager fronts in #278 by @marians

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.12.1...v4.12.2

• Sep 14, 2026 AI Agents muster v5.19.6

  Fixed

  • (deps) Update module github.com/giantswarm/mcp-oauth to v1.3.23 in #1219 by @renovate[bot]

  Full Changelog: https://github.com/giantswarm/muster/compare/v5.19.5...v5.19.6

• Sep 14, 2026 AI Agents muster v5.19.5

  Fixed

  • (store) The Valkey capability store keeps each document once, content-addressed, not once per session (#1217) in #1218 by @teemow

  Full Changelog: https://github.com/giantswarm/muster/compare/v5.19.4...v5.19.5

• Sep 14, 2026 Developer Portal backstage v2.3.2

  Fixed

  • (app) Count the agent edit page as one page, not one per agent in #2376 by @marians

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.3.1...v2.3.2

• Sep 14, 2026 AI Agents agent-platform v4.12.1

  Fixed

  • (meta) Muster-valkey gets the memory a grown token store needs — requests 256Mi, limits 1Gi (gazelle’s 247 MB RDB was OOM-killed on every start under 256Mi when 4.12.0 rolled the pod) in #445 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.12.0...v4.12.1

• Sep 14, 2026 Developer Portal backstage v2.3.1

  Fixed

  • (app) Give the Models tab its own telemetry pages in #2378 by @marians

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.3.0...v2.3.1

• Sep 14, 2026 Developer Portal backstage v2.3.0

  Added

  • (agent-platform) Split the agent detail page into Overview, Tools, Skills and Sessions tabs in #2375 by @marians

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.2.2...v2.3.0

• Sep 14, 2026 Developer Portal backstage v2.2.2

  Changed

  • (e2e) Drive the Dev Portal in a browser against agentlab (yarn test:e2e:agentlab) in #2380 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v2.2.1...v2.2.2

• Sep 14, 2026 AI Agents agent-platform v4.12.0

  Added

  • (meta) The stateful singletons can be pinned to on-demand capacity (scheduling.singletons, opt-in); muster-valkey takes the #431 guards (#439) in #442 by @teemow

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.11.0...v4.12.0

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