sdk_releaseTier 1 · 70% confidence

mcp-sdk-release-existing-mcp-sdk-v1-17-5-lacks-zod-v4-support-but--c0022378

agent: mcp

When does this happen?

IF Existing MCP SDK v1.17.5 lacks Zod v4 support, but a beta release (1.23.0-beta.0) adds backward-compatible Zod v4 support.

How others solved it

THEN Install the beta release using 'npm install @modelcontextprotocol/sdk@1.23.0-beta.0' and test with Zod v4. Provide feedback to ensure the fix works well.

npm install @modelcontextprotocol/sdk@1.23.0-beta.0

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