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Python: Update mcp requirement from <2.0,>=1.26.0 to >=1.26.0,<3.0 in /python #14256

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Python: Update mcp requirement from <2.0,>=1.26.0 to >=1.26.0,<3.0 in /python #14256

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4 changes: 2 additions & 2 deletions python/pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@ dependencies = [
# Protobuf
# explicit typing extensions
"typing-extensions>=4.13",
"mcp>=1.26.0,<2.0",
"mcp>=1.26.0,<3.0",

@github-actions github-actions Bot Aug 3, 2026

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Widening to <3.0 admits mcp 2.x which has documented breaking changes (FastMCP→MCPServer, new Client API, removal of ClientSession). Without corresponding code adaptations or test results showing the existing MCP integration tests pass under mcp 2.x, this risks runtime failures. At minimum, please provide CI evidence that python/tests/ MCP-related tests pass with mcp>=2.0 installed, or add compatibility shims/tests.

]

### Optional dependencies
Expand Down Expand Up @@ -96,7 +96,7 @@ hugging_face = [
"torch==2.13.0"
]
mcp = [
"mcp>=1.8,<2.0",
"mcp>=1.8,<3.0",
]
milvus = [
"pymilvus >= 2.3,< 2.7",
Expand Down
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