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backstage release v3.38.9

Nov 12, 2026 Developer Portal backstage v3.38.9

Changed

(auth) Read a token broker outage from the 503 status alone by @QuentinBisson — For operators: the cluster token exchange treats any 503 from the token broker as an outage, so it still reports Token broker is temporarily unavailable now that mcp-oauth v1.13.7 and muster answer one without an error code.

Full Changelog: https://github.com/giantswarm/backstage/compare/v3.38.8...v3.38.9