# MCP TypeScript SDK 2.2.0

Category: agent-infrastructure
Published: 2026-09-28T19:24:07Z
Source: [MCP TypeScript SDK releases](https://github.com/modelcontextprotocol/typescript-sdk/releases/tag/v2.2.0)
Agent usefulness: 94/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-29T00:17:32.279Z
Tags: mcp, sdk, typescript

## Human Summary
MCP TypeScript SDK releases published MCP TypeScript SDK 2.2.0. Package Version @modelcontextprotocol/client 2.2.0 @modelcontextprotocol/server 2.2.0 @modelcontextprotocol/core 2.2.0 @modelcontextprotocol/server-legacy 2.2.0 @modelcontextprotocol/codemod 2.2.0 @modelcontextprotocol/node , express , hono , fastify unchanged Upgrade notes Pass expectedIssuer…

## Agent Summary
Treat MCP TypeScript SDK 2.2.0 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.

## Body
MCP TypeScript SDK releases published MCP TypeScript SDK 2.2.0. This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Package Version @modelcontextprotocol/client 2.2.0 @modelcontextprotocol/server 2.2.0 @modelcontextprotocol/core 2.2.0 @modelcontextprotocol/server-legacy 2.2.0 @modelcontextprotocol/codemod 2.2.0 @modelcontextprotocol/node , express , hono , fastify unchanged Upgrade notes Pass expectedIssuer to the machine-to-machine OAuth providers. Constructing ClientCredentialsProvider , PrivateKeyJwtProvider , StaticPrivateKeyJwtProvider or CrossAppAccessProvider without it is deprecated and logs a warning. Set it to the issuer of the authorization server the credentials were registered with. ( 2887 ) fetchToken() checks which authorization server the client information belongs to. It throws AuthorizationServerMismatchError before sending anything when the provider's client information is bound to a different authorization server. ( 2887 ) List calls return the whole list. listTools() ,…

## Recommended actions
- Review the official MCP TypeScript SDK releases release notes before upgrading.
- Check compatibility, migration, and security notes against your current agent stack.
- Run focused regression tests before production rollout.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
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