pub const SUPPORTED_PROTOCOL_VERSIONS: [&str; 3];Expand description
MCP protocol revisions this server speaks, newest first.
2025-03-26 is deliberately absent: it mandates JSON-RPC batching, which
control_dispatch cannot parse, and 2025-06-18 removed the requirement
again. Advertising a revision whose MUST we do not implement is the same
untruth as the version this list replaced.