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fix(deps): update rust crate rmcp to v3 - #8

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fix(deps): update rust crate rmcp to v3#8
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renovate/rmcp-3.x

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This PR contains the following updates:

Package Type Update Change
rmcp dependencies major 2.1.0 → 3.0.0

Release Notes

modelcontextprotocol/rust-sdk (rmcp)

v3.1.4

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Fixed
  • (rmcp) preserve elicitation requestedSchema $schema dialect (#​1176)
  • harden signing key handling (#​1166)
  • report pre-init metadata errors (#​1160)

v3.1.3

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Fixed
  • (auth) ignore query parameters when matching resources (#​1177)
  • (auth) retain state until issuer validation (#​1167)
  • (model) preserve elicitation property order metadata (#​1150)
  • time out auto discovery probe (#​1149)
  • (client) classify discover outcome at source, not at the error type (#​1133)
Other
  • Fix typo in to_authorized_http_client doc comment (#​1158)

v3.1.2

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Fixed
  • (auth) map 401/403 challenges on the SSE GET stream (#​1152)
  • (sse) loop instead of recursing when skipping SSE events (#​1146)
  • (auth) preserve issuer trailing slash during discovery (#​1145)

v3.1.1

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Fixed
  • emit cache hints from handler macros (#​1120)
  • expose MRTR state to tool handlers (#​1104)
  • disambiguate input-required results (#​1103)
Other

v3.1.0

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Added
  • classify authorization-required errors (#​1056)
  • add strict stateless protocol metadata validation (#​1091)
  • SEP-2260 stream-based enforcement of client receive-side request association (#​1055)
Fixed
  • (model) decode metadata-bearing input-required results affecting mrtr (#​1097)
  • require metadata for modern HTTP requests (#​1089)
  • honor supported_protocol_versions when negotiating initialize (#​1093)
Other
  • document the ping utility with examples (#​1106)
  • complete Tier 1 feature docs and finalize roadmap (#​1101)
  • (conformance) meeting requirements for tier 1 (#​1087)

v3.0.1

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Fixed
  • (auth) use discovered resource for token refresh (#​1084)
  • return header mismatch for missing protocol header (#​1083)
  • negotiate stateless initialize versions (#​1080)
  • stamp server info on graceful subscription results (#​1078)

v3.0.0

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RMCP 3.0 adds support for MCP 2026-07-28. Review the protocol key changes and the RMCP 3.0 migration guide before upgrading from 2.x.

Breaking changes

  • Sessionless Streamable HTTP: MCP 2026-07-28 removes protocol-level sessions: no Mcp-Session-Id, standalone GET stream, DELETE-based session termination, or Last-Event-ID resumption. RMCP creates a fresh handler per request, so persistent state must live outside the handler. stateful_mode is renamed to legacy_session_mode and now only controls older protocol versions; custom SSE clients must also accept an optional session ID.
  • Stateless lifecycle and discovery: the 2026-07-28 protocol removes initialize/notifications/initialized; each request carries the protocol version and client capabilities in _meta, and servers expose server/discover. RMCP clients opt into this lifecycle with serve_with_lifecycle and ClientLifecycleMode::Discover or Auto; the existing serve() path remains available for legacy initialization.
  • Subscriptions and removed methods: subscriptions/listen replaces the standalone GET stream and resources/subscribe/resources/unsubscribe. ping, logging/setLevel, and notifications/roots/list_changed are unavailable under 2026-07-28; RMCP retains their APIs for legacy protocol sessions.
  • Multi Round-Trip Requests and result types: ServerHandler::call_tool, get_prompt, and read_resource now return MRTR-aware response enums. Manual handler implementations and exhaustive ServerResult matches must handle InputRequiredResult, and result models carry an optional result_type for legacy wire compatibility.
  • Tasks: the experimental core tasks API is replaced by the io.modelcontextprotocol/tasks extension, including new task handlers, methods, and TaskManager APIs.
  • Rust model types: metadata is split into MetaObject, RequestMetaObject, and NotificationMetaObject; Annotations::last_modified is now Option<String>; and tool structured content accepts any serde_json::Value.
  • OAuth: authorization startup is consolidated around AuthorizationRequest; metadata discovery is renamed to resolve_metadata and returns provenance; and custom OAuth HTTP errors are now boxed source errors.
  • Compatibility: APIs deprecated before 3.0 have been removed, and the minimum supported Rust version is now 1.88.

What's Changed

New Contributors

Full Changelog: modelcontextprotocol/rust-sdk@rmcp-v2.2.0...rmcp-v3.0.0

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This PR has been generated by Mend Renovate.

@auto-managed auto-managed Bot added dependencies Dependency updates (Renovate) major-update Major version bump — needs human review needs-human Automation escalated — requires a human labels Jul 29, 2026
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