CogniRelay

CogniRelay v1.4.3 Release Notes

Release date: 2026-04-26

CogniRelay v1.4.3 is a focused patch release for MCP startup compatibility with currently deployed Codex clients.

Highlights

• MCP initialize now accepts both protocol versions 2025-06-18 and 2025-11-25.
• Successful MCP initialization echoes the accepted client-requested protocol version, so older compatible clients can complete startup.
• Unknown protocol versions still fail deterministically with Unsupported protocol version and a supported-version list.
• /.well-known/mcp.json, discovery metadata, and MCP docs now advertise both supported initialize protocol versions while keeping 2025-11-25 as the preferred/latest version.

Compatibility Notes

• No MCP tool, JSON-RPC method, HTTP route, schedule, graph, continuity, or UI response shape changed outside MCP initialize protocol negotiation metadata.
• The bounded MCP posture remains intact: initialize, notifications/initialized, ping, tools/list, tools/call, and the existing post-bootstrap help/reference request methods are unchanged.
• The GET /v1/capabilities version field remains the capability schema version ("1").

Verification

Release preparation should pass:

git diff --check
./.venv/bin/python -m ruff check app tests tools
./.venv/bin/python -m unittest discover -s tests -v

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