Update module github.com/mark3labs/mcp-go to v0.55.1 by renovate[bot] · Pull Request #94 · 3-shake/alert-menta

renovate · 2026-04-24T17:25:23Z

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/mark3labs/mcp-go	`v0.43.2` → `v0.55.1`

Release Notes

mark3labs/mcp-go (github.com/mark3labs/mcp-go)

What's Changed

fix(server): handle resources/subscribe and resources/unsubscribe (#865) by @ezynda3 in #873
fix(oauth): use LATEST_PROTOCOL_VERSION in metadata discovery (#868) by @ezynda3 in #874
fix(oauth): don't hold metadataMu across HTTP discovery (#871) by @ezynda3 in #875
feat(mcp): add 2025-11-25 sampling-with-tools and capability sub-fields (#867) by @ezynda3 in #876
refactor: use MCP method constants by @nanookclaw in #878
docs: add missing godoc comments by @aqilaziz in #877
fix: add panic recovery to SSE message handler and stdio tool call worker by @blackwell-systems in #882
fix: add panic recovery to task goroutines, fix cleanup goroutine leak by @blackwell-systems in #880
feat: add OpenTelemetry tracing hooks to server and client by @QuentinBisson in #856
fix: add panic recovery to session hook goroutines by @blackwell-systems in #883
feat(mcp): add BaseMetadata.title, Icon.theme, Resource.size (#870) by @ezynda3 in #885

New Contributors

@nanookclaw made their first contribution in #878
@aqilaziz made their first contribution in #877

Full Changelog: mark3labs/mcp-go@v0.53.0...v0.54.0

`v0.53.0`

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What's Changed

feat(server): add WithStrictInputSchemaDefault by @QuentinBisson in #853
fix(server): add CloseSessions and prevent double-close panic on SSE sessions by @blackwell-systems in #852
fix(transport): suppress closed-pipe shutdown noise by @Gujiassh in #863
fix: add panic recovery to transport goroutines by @blackwell-systems in #861
fix: ToolInputSchema inherits MarshalJSON (fixes #694) by @tamish-max in #858
we should use pointers on returns for ListPrompts and ListResources by @Patryk-Stefanski in #855
fix(mcp): allow _meta on paginated requests by @curbol in #854
refactor(server): use explicit struct literal in ListTools by @ezynda3 in #864

New Contributors

@QuentinBisson made their first contribution in #853
@tamish-max made their first contribution in #858
@curbol made their first contribution in #854

Full Changelog: mark3labs/mcp-go@v0.52.0...v0.53.0

`v0.52.0`

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`v0.51.0`

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What's Changed

fix(examples): return isError for input validation instead of internal error by @blackwell-systems in #838
fix: issue-829: setTools may resulted in an empty tools. by @ycqqq in #830
fix(transport): stop retrying on session terminated in listenForever by @blackwell-systems in #839
feat(transport): add CommandTransport for subprocess MCP servers by @ezynda3 in #840
feat(server): add OAuth Protected Resource Metadata endpoint (RFC 9728) by @ezynda3 in #841
feat(client): add Go 1.23 iterator methods for paginated results by @ezynda3 in #842
feat: add opt-in CORS support to HTTP transports (#810) by @ezynda3 in #843
feat: validate tool output against declared output schemas (#811) by @ezynda3 in #844
feat(transport): add LoggingTransport wrapper for JSON-RPC tracing by @ezynda3 in #845
feat(mcp): add SchemaCache for stateless/serverless deployments by @ezynda3 in #846
fix(oauth): accept any 2xx token response status (#835) by @ezynda3 in #847
docs(server): document OnBeforeAny/OnSuccess/OnError pairing (#827) by @ezynda3 in #848

New Contributors

@ycqqq made their first contribution in #830

Full Changelog: mark3labs/mcp-go@v0.50.0...v0.51.0

`v0.50.0`

Compare Source

What's Changed

feat: add WithInteger and WithIntegerItems options by @guillaumerob-dd in #805
Handle non-compliant JSON-RPC error responses where error is a string by @Abhinav2408 in #825
fix(examples): redirect hook output to stderr in everything server by @blackwell-systems in #828
feat: add ListPrompts and ListResources methods by @Patryk-Stefanski in #831
feat(server): opt-in input schema validation per SEP-1303 by @teemow in #834

New Contributors

@guillaumerob-dd made their first contribution in #805
@Abhinav2408 made their first contribution in #825
@Patryk-Stefanski made their first contribution in #831
@teemow made their first contribution in #834

Full Changelog: mark3labs/mcp-go@v0.49.0...v0.50.0

`v0.49.0`

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`v0.48.0`

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`v0.47.1`

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What's Changed

docs(client): add example to NewSSEMCPClient to avoid variable shadowing by @vincent067 in #773
Bound stdio child shutdown in Close() by @jbjardine in #784
fix(client/http_streamable): exit ContinuousListening goroutine on context cancellation by @swedishborgie in #790

New Contributors

@jbjardine made their first contribution in #784
@swedishborgie made their first contribution in #790

Full Changelog: mark3labs/mcp-go@v0.47.0...v0.47.1

`v0.47.0`

Compare Source

What's Changed

docs: add missing example references to README by @vincent067 in #772
fix: close done channel on nil response to prevent goroutine leak by @Sim-hu in #766
fix(server): reject sync calls to task-only tools by @Gujiassh in #778
fix(transport): preserve OAuth discovery paths by @Gujiassh in #775
enhancement: client side 'task' functions for 'get', 'list', 'cancel' and 'result' operation by @yuehaii in #770
feat: add Use() method for attaching tool middleware at runtime by @majiayu000 in #767
fix(client): make readSSE context-aware to prevent goroutine leaks and HTTP/2 hangs by @samkeet in #780
fix: extract and set _meta field in ParseContent by @parkerbxyz in #777
fix: cancel context before closing body to prevent HTTP/2 hang by @samkeet in #769

New Contributors

@Sim-hu made their first contribution in #766
@majiayu000 made their first contribution in #767
@samkeet made their first contribution in #780
@parkerbxyz made their first contribution in #777

Full Changelog: mark3labs/mcp-go@v0.46.0...v0.47.0

`v0.46.0`

Compare Source

`v0.45.0`

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What's Changed

Add RFC 7591 client_uri support in dynamic client registration by @MariaChrysafis in #726
feat(transport): return ErrLegacySSEServer on 4xx initialize for spec-compliant SSE fallback by @MariaChrysafis in #731
feat: add GetHooks() method to MCPServer for hook composability by @naji247 in #728
fix: always include properties field in tool JSON Schema by @krus210 in #727
feat: add Description and WebsiteURL fields to Implementation struct by @suxiaohun in #733

New Contributors

@naji247 made their first contribution in #728
@krus210 made their first contribution in #727
@suxiaohun made their first contribution in #733

Full Changelog: mark3labs/mcp-go@v0.44.1...v0.45.0

`v0.44.1`

Compare Source

What's Changed

fix: add session idle TTL sweeper to prevent transport state leak by @NLipatov in #724

New Contributors

@NLipatov made their first contribution in #724

Full Changelog: mark3labs/mcp-go@v0.44.0...v0.44.1

`v0.44.0`

Compare Source

What's Changed

feat: defer tool loading to enable Anthropic's "Tool Search" pattern by @wolfeidau in #644
fix: return an error if the responseWriter does not support Flush by @JoelPfaffDD in #652
Add Icons support for MCP spec 2025-11-25 compliance by @dask-58 in #660
fix: add ErrUnauthorized sentinel for static token 401 responses by @ezynda3 in #661
Add lastModified field to Annotations for MCP spec 2025-11-25 by @dask-58 in #663
Add server-side support for MCP tasks by @JAORMX in #635
fix: drain all pending notification before writing the response to avoid missing notifications by @archit-harness in #670
fix for nil resources slice by @furysama in #665
Add docstrings for annotation-related functions by @ezynda3 in #673
fix: add timeout for SSE response waiting to prevent indefinite blocking by @everfid-ever in #668
Try OAuth Authorization Server Metadata first by @staugaard in #669
fix(oauth): check for OAuth error responses even when status code is 200 by @sd2k in #646
fix: Add missing session cleanup to the StreamableHTTPServer DELETE handler by @cnnrznn in #667
Implement Elicitation URL mode for MCP spec 2025-11-25 by @dask-58 in #666
feat: Add Host header override support for manual DNS resolution by @ComingCL in #674
fix: low mcp version been selected by mcp server, mcp server may also raise 'unsupported protocol version 2025-11-25' error by @yuehaii in #687
Add AdditionalProperties to ToolInputSchema by @mohit-gupta-glean in #678
fix: fix TestSSE_SendRequest_Timeout flaky test by @everfid-ever in #683
feat:add version 2025-11-25 & unit test for version by @CocaineCong in #684
fix: use sync.Once for thread-safe Close in StreamableHTTP by @semihbkgr in #685
docs: fix ListTools usage to include ListToolsRequest parameter by @everfid-ever in #681
fix: return 404 instead of 400 for invalid session IDs by @burugo in #689
fix: rename NewToolResultAudio second parameter from imageData to aud… by @mosesyu95 in #691
Server handlers implementation for auto-completion by @ezraisw in #679
Fix: the header information set by the client being lost. by @button-chen in #686
Set test client info by @urisimchoni in #692
refactor: fix modernize lint issues by @alexandear in #699
refactor: simplify tests with the usetesting linter by @alexandear in #703
typo: fix duplicate description of mcp-go in README by @milairhu in #701
feat(server): implement task-augmented tools capability by @ezynda3 in #707
tool "properties" and "required" fields missing if set them as null, AdditionalProperties can't be masharl by @yuehaii in #713
Fix no way to detect connection closure in non-NO_ERROR cases by @manx98 in #709
fix: accept HTTP 204 No Content in SendNotification by @satish-karri-glean in #717
fix: use custom session id generator when provided by @FlameHost10 in #715
fix: SendRequest hangs forever when server process dies by @ichoosetoaccept in #714

New Contributors

@wolfeidau made their first contribution in #644
@JoelPfaffDD made their first contribution in #652
@dask-58 made their first contribution in #660
@JAORMX made their first contribution in #635
@archit-harness made their first contribution in #670
@furysama made their first contribution in #665
@everfid-ever made their first contribution in #668
@staugaard made their first contribution in #669
@cnnrznn made their first contribution in #667
@ComingCL made their first contribution in #674
@mohit-gupta-glean made their first contribution in #678
@semihbkgr made their first contribution in #685
@burugo made their first contribution in #689
@mosesyu95 made their first contribution in #691
@ezraisw made their first contribution in #679
@urisimchoni made their first contribution in #692
@alexandear made their first contribution in #699
@milairhu made their first contribution in #701
@manx98 made their first contribution in #709
@satish-karri-glean made their first contribution in #717
@FlameHost10 made their first contribution in #715
@ichoosetoaccept made their first contribution in #714

Full Changelog: mark3labs/mcp-go@v0.43.2...v0.44.0

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renovate · 2026-04-24T17:25:25Z

ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

The go directive was updated for compatibility reasons

Details:

Package	Change
`go`	`1.24.0` -> `1.25.5`

renovate Bot requested a review from pacificbelt30 April 24, 2026 17:25

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Update module github.com/mark3labs/mcp-go to v0.55.1#94

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