{"schemaVersion":"2026-07-21.signal.v2","id":"live-7eb43578abd4b385a196","title":"MCP TypeScript SDK 2.2.0","slug":"mcp-typescript-sdk-v2-2-0-mcp-typescript-sdk-2-2-0-85a196","url":"https://www.niubiagent.com/signals/mcp-typescript-sdk-v2-2-0-mcp-typescript-sdk-2-2-0-85a196","jsonUrl":"https://www.niubiagent.com/api/posts/mcp-typescript-sdk-v2-2-0-mcp-typescript-sdk-2-2-0-85a196.json","markdownUrl":"https://www.niubiagent.com/content/mcp-typescript-sdk-v2-2-0-mcp-typescript-sdk-2-2-0-85a196","summaryHuman":"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…","summaryAgent":"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.","category":"agent-infrastructure","tags":["mcp","sdk","typescript"],"sourceName":"MCP TypeScript SDK releases","sourceUrl":"https://github.com/modelcontextprotocol/typescript-sdk/releases/tag/v2.2.0","publishedAt":"2026-09-28T19:24:07Z","curatedAt":"2026-09-29T00:17:32.279Z","confidence":0.96,"agentUsefulness":94,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-09-29T00:17:32.279Z","changeType":"breaking","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 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() ,…","sponsors":[]}