Changes and Releases

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

• Aug 27, 2026 Developer Portal backstage v0.195.2

  Fixed

  • (muster) Let the per-server sign-in survive a realistic OAuth round-trip in #2123 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.195.1...v0.195.2

• Aug 27, 2026 AI Agents muster v5.4.0

  Added

  • Add sigv4 signing in #1082 by @JosephSalisbury

  Full Changelog: https://github.com/giantswarm/muster/compare/v5.3.1...v5.4.0

• Aug 27, 2026 Developer Portal backstage v0.195.1

  Fixed

  • (muster) Gate Start/Restart for OAuth servers waiting on sign-in; render tool errors as text in #2122 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.195.0...v0.195.1

• Aug 27, 2026 AI Agents agent-platform v2.13.0

  Added

  • (connectivity) Gate the kyverno objects behind kyvernoPolicies in #234 by @QuentinBisson

  Changed

  • (connectivity) Cover the no-Kyverno render in the ci matrix in #239 by @QuentinBisson

  Full Changelog: https://github.com/giantswarm/agent-platform/compare/v2.12.0...v2.13.0

• Aug 27, 2026 AI Agents muster v5.3.1

  Fixed

  • (oauth) Complete the callback flow despite duplicate delivery and client disconnect in #1090 by @teemow

  Full Changelog: https://github.com/giantswarm/muster/compare/v5.3.0...v5.3.1

• Aug 27, 2026 Developer Portal backstage v0.195.0

  Added

  • (muster) Auto-detect the MCP server transport in the registration wizard in #2121 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.194.0...v0.195.0

• Aug 27, 2026 AI Agents muster v5.3.0

  Added

  • (mcpserver) Add core_mcpserver_detect for transport auto-detection in #1087 by @teemow

  Full Changelog: https://github.com/giantswarm/muster/compare/v5.2.1...v5.3.0

• Aug 27, 2026 Developer Portal backstage v0.194.0

  Added

  • (muster) Warn truthfully when the AS rejected muster’s client registration in #2120 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.193.0...v0.194.0

• Aug 27, 2026 AI Agents muster v5.2.1

  Fixed

  • (oauth) Omit scope from RFC 7591 registration requests in #1086 by @teemow

  Full Changelog: https://github.com/giantswarm/muster/compare/v5.2.0...v5.2.1

• Aug 26, 2026 Developer Portal backstage v0.193.0

  Added

  • (muster) Surface the sign-in client identification method (CIMD/DCR) in #2119 by @teemow

  Full Changelog: https://github.com/giantswarm/backstage/compare/v0.192.0...v0.193.0

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