# @modelcontextprotocol/server-legacy@2.1.0

Category: agent-infrastructure
Published: 2026-09-23T15:43:20Z
Source: [MCP TypeScript SDK releases](https://github.com/modelcontextprotocol/typescript-sdk/releases/tag/%40modelcontextprotocol/server-legacy%402.1.0)
Agent usefulness: 82/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-23T16:17:28.409Z
Tags: mcp, sdk, typescript

## Human Summary
MCP TypeScript SDK releases published @modelcontextprotocol/server-legacy@2.1.0. Patch Changes - Updated dependencies dcc0102 (https://github.com/modelcontextprotocol/typescript-sdk/commit/dcc01028ff6a499a5728c2b6181c1727d52e2fab) : - @modelcontextprotocol/core@2.1.0

## Agent Summary
Treat @modelcontextprotocol/server-legacy@2.1.0 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 @modelcontextprotocol/server-legacy@2.1.0. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Patch Changes - Updated dependencies dcc0102 (https://github.com/modelcontextprotocol/typescript-sdk/commit/dcc01028ff6a499a5728c2b6181c1727d52e2fab) : - @modelcontextprotocol/core@2.1.0

## 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
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.