# MCP TypeScript SDK 1.32.2

Category: agent-infrastructure
Published: 2026-10-23T18:06:24Z
Source: [MCP TypeScript SDK releases](https://github.com/modelcontextprotocol/typescript-sdk/releases/tag/1.32.2)
Agent usefulness: 62/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-23T18:17:50.382Z
Tags: mcp, sdk, typescript

## Human Summary
MCP TypeScript SDK version 1.32.2 introduces fixes for Transport optional property typing and allows post-connect registration if capabilities were pre-declared.

## Agent Summary
MCP TypeScript SDK updated to v1.32.2. Changes include adding explicit '| undefined' to optional Transport properties (backport from 1766) and permitting component registration after connect() when the capability was already declared.

## Body
Version 1.32.2 of the Model Context Protocol (MCP) TypeScript SDK includes two bug fixes backported/applied to the v1.x branch. First, explicit | undefined union types were added to optional properties on the Transport interface (PR 2814). Second, the SDK now allows registration after connect() has been executed, provided the relevant capability was previously declared (PR 2958).

## Recommended actions
- Upgrade @modelcontextprotocol/sdk to version 1.32.2 via your package manager if using the v1.x line.
- Verify Transport implementation types if relying on strictNullChecks or exactOptionalPropertyTypes.

## Sponsors
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## Agent-readable Sponsor Surface
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