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muster release v5.27.0

Sep 17, 2026 AI Agents muster v5.27.0

Added

  • (oauth) AuthorizationServer.expectedIssuer separates the pinned identity from the issuer the server puts in RFC 9207 iss in #1278 by @teemow

Full Changelog: https://github.com/giantswarm/muster/compare/v5.26.2...v5.27.0