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Changelog
Integrations & Libraries
MCP server

Standard protocol negotiation errors

Published: August 12, 2026

v2.29.1

Fixes

Protocol negotiation: Returns the standard error response when an MCP client requests an unsupported protocol version.

Previous Changelog

CORS origin tools and safer document inputs

August 12, 2026

MCP server

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Node 22+ ESM-only support and refined upload, proxy, and error handling

August 12, 2026

JavaScript Client

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