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Point imports of mcp.server.fastmcp at the migration guide
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#1927:
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#3388
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fastmcp-import-tombstone
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fix(client): surface non-2xx POST failures to the awaiting caller (#2110)
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fix(client): allow ClientSessionGroup to connect to servers without components
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fix(server): register SSE GET as raw ASGI so BaseHTTPMiddleware does not see a second response start
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jwilson411:oss/UP-12/20260824222122
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Split ValueError from unexpected errors during logs.
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Build releases with the pinned hatchling and a publish action that ac…
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Build releases with the pinned hatchling and a publish action that accepts Metadata 2.5
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fix-publish-metadata-2.5
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Split ValueError from unexpected errors during logs.
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docs: refresh translations for recent English changes (#3379)
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docs: refresh translations for recent English changes
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Gate draft PRs too and rewrite the auto-close comment
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Give recursive tool return types an object-rooted output schema (#3376)
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Give recursive tool return types an object-rooted output schema
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fix/recursive-output-schema-object-root
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fix(client/stdio): allow FIFO cleanup of multiple transports on asyncio
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#1913:
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jwilson411:oss/UP-11/20260824155844
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Split ValueError from unexpected errors during logs.
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Split ValueError from unexpected errors during logs.
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Log MCPServer handler exceptions by kind and keep crash details off t…
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Accept boolean sub-schemas in 2025-11-25 tool schema properties (#3354)
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fix(cli): register module in sys.module during _import_server so it can find itself
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fix: correlate invalid JSON-RPC envelope errors with the original request id
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Clarify missing tool_result validation error
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fix: avoid shell interpretation in MCP dev launcher
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Add isError support for non-text tool results (Fixes #348)
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Fix ClientSession error handling: add transport_exception_handler callback (Fixes #1401)
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