# @modelcontextprotocol/server@2.4.0

Category: agent-infrastructure
Published: 2026-10-23T18:19:14Z
Source: [MCP TypeScript SDK releases](https://github.com/modelcontextprotocol/typescript-sdk/releases/tag/%40modelcontextprotocol/server%402.4.0)
Agent usefulness: 77/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-23T20:17:56.477Z
Tags: mcp, sdk, typescript

## Human Summary
MCP TypeScript SDK releases published @modelcontextprotocol/server@2.4.0. Minor Changes - 3057 (https://github.com/modelcontextprotocol/typescript-sdk/pull/3057) c05225a (https://github.com/modelcontextprotocol/typescript-sdk/commit/c05225a636c679870b65f8ca4fe83a76ea1cf113) Thanks @steipete (https://github.com/steipete)! - ServerEvent takes optional params…

## Agent Summary
Treat @modelcontextprotocol/server@2.4.0 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@2.4.0. 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: Minor Changes - 3057 (https://github.com/modelcontextprotocol/typescript-sdk/pull/3057) c05225a (https://github.com/modelcontextprotocol/typescript-sdk/commit/c05225a636c679870b65f8ca4fe83a76ea1cf113) Thanks @steipete (https://github.com/steipete)! - ServerEvent takes optional params , which the subscriptions/listen router delivers with its own subscription ID, so a gateway can forward change notifications with their meta and extension params. - 3047 (https://github.com/modelcontextprotocol/typescript-sdk/pull/3047) 46d9c99 (https://github.com/modelcontextprotocol/typescript-sdk/commit/46d9c9921b6542e813c1ecc5f9fc964085e8e3bb) Thanks @KKonstantinov (https://github.com/KKonstantinov), @tobi-oye (https://github.com/tobi-oye), @mattzcarey (https://github.com/mattzcarey)! - Add the Skills extension (SEP-2640), reachable through new ext/skills subpaths; package root exports are unchanged. -…

## 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.