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Update docs about the dropped Tagus support#27

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noVaSon wants to merge 2 commits intoeclipse-xfsc:mainfrom
federated-catalogue-enhancements-2026:merge-to-upstream/remove-tagus-support
Open

Update docs about the dropped Tagus support#27
noVaSon wants to merge 2 commits intoeclipse-xfsc:mainfrom
federated-catalogue-enhancements-2026:merge-to-upstream/remove-tagus-support

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@noVaSon
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@noVaSon noVaSon commented Apr 15, 2026

Summary

Updates the architecture documentation to reflect that the Federated Catalogue no longer supports the earlier Gaia-X trust framework generations (Elbe and Tagus). The documentation now describes the current state — VC 2.0 with JWT signatures only — rather than maintaining parallel descriptions of removed code paths.

What changed

Verification pipeline — Removed all references to Linked Data proof verification (URDNA2015, JsonWebSignature2020) and the three-path format detection model. The building block view and runtime view now describe a single JWT-based verification path. Flowcharts and sequence diagrams simplified accordingly.

ADR 9 — Rewritten from "namespace coexistence" to "removal of Tagus support". Documents the decision to drop VC 1.1 and Tagus-era namespaces, with a clear migration warning that the catalogue rejects these formats with an exception — not a graceful deprecation.

Glossary — Tagus entry updated to reflect it is no longer supported.

Examples — Appendix query examples migrated from VC 1.1 / gax-trust-framework: to VC 2.0 / gx:2511#.

References — VC Data Model footnote updated from v1.1 to v2.0.

📋 Checklist

  • I’ve updated documentation if necessary

@sonarqubecloud
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