Responded correctly: sent Version Negotiation for 2 datagram(s); the client did not persist with an unsupported version.
The client did what the clause requires.
What was measured
- Client
- quico — quico + lemon-tls, 0.7.0 (npm)
- Test
- Version Negotiation offering a reserved version alongside v1 —
q-version-negotiation - Clause
- RFC 9000 §6 (MUST)
- Class
- correctness — Rejected something invalid, with the code the RFC names.
- Required behaviour
- Abandon the connection attempt, or retry with a version both ends support. §6.2 requires a client that supports only one version to abandon it rather than persist.
- Measured
- 2026-10-15
Reproduce it
The suite is the judge, so the reproduction is to point the same client at the same test and let the server report what it saw.
SESSION=$(curl -sX POST https://conformance.pqcrypta.com/session | jq -r .id)
# then drive quico at the test URL and read the verdict:
curl -s https://conformance.pqcrypta.com/report/$SESSION.json | jq '.results["q-version-negotiation"]'