Sourced from github.com/mark3labs/mcp-go's releases.

Release v0.38.0

What's Changed

• fix: resolve stdio transport race condition for concurrent tool calls by @​ezynda3 in mark3labs/mcp-go#529
• fix CallToolResult json marshaling and unmarshaling: need structuredC… by @​sunfuze in mark3labs/mcp-go#523
• feat: refactor constants for resource content types by @​CocaineCong in mark3labs/mcp-go#489
• feat: add missing SetPrompts, DeleteResources, and SetResources methods by @​vasayxtx in mark3labs/mcp-go#445
• feat: support creating tools using go-struct-style input schema by @​Grivn in mark3labs/mcp-go#534
• fix: remove duplicate methods server.SetPrompts & server.SetResources by @​matthisholleville in mark3labs/mcp-go#542

New Contributors

• @​sunfuze made their first contribution in mark3labs/mcp-go#523
• @​Grivn made their first contribution in mark3labs/mcp-go#534
• @​matthisholleville made their first contribution in mark3labs/mcp-go#542

Full Changelog: https://github.com/mark3labs/mcp-go/compare/v0.37.0...v0.38.0

Release v0.37.0

⚠️ Breaking Changes

The Result.Meta field type has changed from map[string]any to *Meta. Code that directly accesses or sets this field will need to be updated:

// Before (v0.36.0 and earlier):
result.Meta = map[string]any{"key": "value"}
// After (v0.37.0):
result.Meta = &mcp.Meta{AdditionalFields: map[string]any{"key": "value"}}

What's Changed

• Replace Prompts/Resources/Resource Templates by @​dgageot in mark3labs/mcp-go#518
• Update server.go race condition by @​outofthisworld in mark3labs/mcp-go#524
• task: add _meta field to relevant types as defined in MCP specification by @​buraksenn in mark3labs/mcp-go#429
• feat: implement sampling support for Streamable HTTP transport by @​andig in mark3labs/mcp-go#515
• Fix SSE transport not properly handling HTTP/2 NO_ERROR disconnections by @​okoshi-f in mark3labs/mcp-go#509
• feat: add thread-safe SetExpectedState for cross-request OAuth flows by @​sd2k in mark3labs/mcp-go#500
• feat: allow to set a custom logger in the SSE and STDIO clients by @​caarlos0 in mark3labs/mcp-go#525

New Contributors

• @​outofthisworld made their first contribution in mark3labs/mcp-go#524
• @​buraksenn made their first contribution in mark3labs/mcp-go#429
• @​andig made their first contribution in mark3labs/mcp-go#515
• @​okoshi-f made their first contribution in mark3labs/mcp-go#509
• @​caarlos0 made their first contribution in mark3labs/mcp-go#525

Full Changelog: https://github.com/mark3labs/mcp-go/compare/v0.36.0...v0.37.0

Release v0.36.0

What's Changed

• Add defs field to ToolsInputSchema by @​ostafen in mark3labs/mcp-go#488

... (truncated)

• 35ebaa5 Add releases notification
• 9f16336 fix: remove duplicate methods server.SetPrompts & server.SetResources (#542)
• 8a18f59 feat: support creating tools using go-struct-style input schema (#534)
• a3d34d9 feat: add missing SetPrompts, DeleteResources, and SetResources methods (#445)
• 8a88d01 feat:add constants for resource content types (#489)
• 9c5d303 fix CallToolResult json marshaling and unmarshaling: need structuredC… (#523)
• 9393526 fix: resolve stdio transport race condition for concurrent tool calls (#529)
• 6da5cd1 feat: allow to set a custom logger in the SSE and STDIO clients (#525)
• 9259d32 feat: add thread-safe SetExpectedState for cross-request OAuth flows (#500)
• a63f10e Fix SSE transport not properly handling HTTP/2 NO_ERROR disconnections (#509)
• Additional commits viewable in compare view

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