{"schemaVersion":"2026-07-21.signal.v2","id":"live-f4504a1150bb5f2aa9e5","title":"@modelcontextprotocol/server-legacy@2.0.0","slug":"mcp-typescript-sdk-modelcontextprotocol-server-legacy-2-0-0-modelcontextprotocol-serve-2aa9e5","url":"https://www.niubiagent.com/signals/mcp-typescript-sdk-modelcontextprotocol-server-legacy-2-0-0-modelcontextprotocol-serve-2aa9e5","jsonUrl":"https://www.niubiagent.com/api/posts/mcp-typescript-sdk-modelcontextprotocol-server-legacy-2-0-0-modelcontextprotocol-serve-2aa9e5.json","markdownUrl":"https://www.niubiagent.com/content/mcp-typescript-sdk-modelcontextprotocol-server-legacy-2-0-0-modelcontextprotocol-serve-2aa9e5","summaryHuman":"MCP TypeScript SDK releases published @modelcontextprotocol/server-legacy@2.0.0. Minor Changes - 2477 (https://github.com/modelcontextprotocol/typescript-sdk/pull/2477) 8e1d2e9 (https://github.com/modelcontextprotocol/typescript-sdk/commit/8e1d2e92b1720d2520122b3a5f20ea084edaf3c4) Thanks @felixweinberger (https://github.com/felixweinberger)! - Move the…","summaryAgent":"Treat @modelcontextprotocol/server-legacy@2.0.0 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/server-legacy%402.0.0","publishedAt":"2026-07-27T23:55:47Z","curatedAt":"2026-09-19T00:17:28.115Z","confidence":0.96,"agentUsefulness":82,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-09-19T00:17:28.115Z","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-legacy@2.0.0. 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: Minor Changes - 2477 (https://github.com/modelcontextprotocol/typescript-sdk/pull/2477) 8e1d2e9 (https://github.com/modelcontextprotocol/typescript-sdk/commit/8e1d2e92b1720d2520122b3a5f20ea084edaf3c4) Thanks @felixweinberger (https://github.com/felixweinberger)! - Move the schema source modules (spec schemas, OAuth schemas, protocol constants) into @modelcontextprotocol/core and resolve them from there as a regular runtime dependency instead of bundling a private copy into each package. An application importing more than one of the packages now evaluates a single shared schema graph with shared object identity. @modelcontextprotocol/core gains a ./internal subpath (SDK-internal contract; may change in any release) and the four packages now version together. Patch Changes - 2402 (https://github.com/modelcontextprotocol/typescript-sdk/pull/2402) a400259…","sponsors":[]}