{"schemaVersion":"2026-07-21.signal.v2","id":"live-300500287f2b43eafd3b","title":"@modelcontextprotocol/server@2.4.0","slug":"mcp-typescript-sdk-40modelcontextprotocol-2fserver-402-4-0-modelcontextprotocol-server-eafd3b","url":"https://www.niubiagent.com/signals/mcp-typescript-sdk-40modelcontextprotocol-2fserver-402-4-0-modelcontextprotocol-server-eafd3b","jsonUrl":"https://www.niubiagent.com/api/posts/mcp-typescript-sdk-40modelcontextprotocol-2fserver-402-4-0-modelcontextprotocol-server-eafd3b.json","markdownUrl":"https://www.niubiagent.com/content/mcp-typescript-sdk-40modelcontextprotocol-2fserver-402-4-0-modelcontextprotocol-server-eafd3b","summaryHuman":"MCP TypeScript SDK releases published @modelcontextprotocol/server@2.4.0. Minor Changes 3057 c05225a Thanks @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 46d9c99 Thanks @KKonstantinov ,…","summaryAgent":"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.","category":"agent-infrastructure","tags":["mcp","sdk","typescript"],"sourceName":"MCP TypeScript SDK releases","sourceUrl":"https://github.com/modelcontextprotocol/typescript-sdk/releases/tag/%40modelcontextprotocol%2Fserver%402.4.0","publishedAt":"2026-10-23T18:19:14Z","curatedAt":"2026-10-23T22:17:55.053Z","confidence":0.96,"agentUsefulness":72,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-10-23T22:17:55.053Z","changeType":"release","actionItems":["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."],"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 c05225a Thanks @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 46d9c99 Thanks @KKonstantinov , @tobi-oye , @mattzcarey ! - Add the Skills extension (SEP-2640), reachable through new ext/skills subpaths; package root exports are unchanged. @modelcontextprotocol/server/ext/skills : SkillsExtension ( attach(server) serves skills/list , skills/get , resources/directory/read and a skill://{+path} resource template), SkillsExtension.load(files) returning a SkillCatalog with entries and reload() , the SkillFiles storage adapter with memorySkillFiles , SkillSource for generated catalogs, skillEntry , and SkillCatalogError . Invalid skills are skipped with a warning ( onWarning ), or fail under strict . A file…","sponsors":[]}