Version Packages (alpha)

.changeset/pre.json

@@ -21,85 +21,132 @@
     "@modelcontextprotocol/test-conformance": "2.0.0-alpha.0",
     "@modelcontextprotocol/test-helpers": "2.0.0-alpha.0",
     "@modelcontextprotocol/test-integration": "2.0.0-alpha.0",
-    "@modelcontextprotocol/test-e2e": "2.0.0-alpha.0"
+    "@modelcontextprotocol/test-e2e": "2.0.0-alpha.0",
+    "@mcp-examples/shared": "2.0.0-alpha.0"
   },
   "changesets": [
     "abort-handlers-on-close",
+    "add-connect-prior",
     "add-consumer-sse-e2e",
     "add-core-public-package",
     "add-e2e-test-suite",
     "add-fastify-middleware",
     "add-hono-peer-dep",
+    "add-request-state-codec",
     "add-resource-size-field",
     "add-sdk-http-error",
     "add-server-legacy-package",
+    "add-version-negotiation-option",
+    "auth-dcr-hygiene",
+    "auth-iss-server-and-overload",
+    "auth-iss-validation",
+    "auth-sep-2352-credential-isolation",
+    "auth-surface-delta",
     "bound-resumability-version-gates",
     "brave-lions-glow",
     "busy-rice-smoke",
     "busy-weeks-hang",
+    "cacheable-result-cache-fields",
     "cfworker-out-of-barrel",
+    "client-honor-cache-hints",
+    "client-http-stream-close-cancel",
+    "client-modern-era-inbound-drop",
+    "client-response-cache-substrate",
+    "codec-era-gates",
+    "codec-split-wire-break",
     "codemod-core-routing",
+    "codemod-flag-removed-task-options",
     "codemod-infer-project-type",
     "codemod-resolve-legacy-imports",
     "codemod-streamablehttperror-sdkhttperror",
     "codemod-task-handler-methods",
+    "codemod-v1-to-v2-gaps",
+    "create-mcp-handler-legacy-revision",
+    "create-mcp-handler",
     "custom-methods-minimal",
     "cyan-cycles-pump",
+    "deprecate-client-identity-accessors",
     "draft-spec-non-sep-conformance",
     "drop-zod-peer-dep",
+    "envelope-auto-emission",
     "export-inmemory-transport",
     "expose-auth-server-discovery",
     "expose-icons-on-tools-and-prompts",
     "express-resource-server-auth",
-    "extract-task-manager",
     "fast-dragons-lead",
     "finish-sdkerror-capability",
     "fix-abort-listener-leak",
     "fix-conformance-server-leak",
     "fix-oauth-5xx-discovery",
     "fix-onerror-callbacks",
     "fix-server-protocol-version",
-    "fix-session-status-codes",
     "fix-stdio-epipe-crash",
     "fix-stdio-windows-hide",
     "fix-streamable-close-reentrant",
     "fix-streamable-http-error-response",
-    "fix-task-session-isolation",
     "fix-transport-exact-optional-property-types",
     "fix-unknown-tool-protocol-error",
     "fix-validate-client-metadata-url",
     "funky-baths-attack",
     "gentle-planets-rest",
+    "handler-drop-node-face",
     "heavy-walls-swim",
+    "hide-wire-only-members",
     "hono-peer-optional",
     "idjag-spec-type-export",
     "legacy-module-resolution-types",
+    "missing-client-capability-error",
+    "mrtr-client-engine",
+    "mrtr-server-seam",
+    "node-forward-supported-versions",
     "oauth-error-http200",
     "odd-forks-enjoy",
+    "origin-validation-middleware",
+    "pin-modern-rejection-codes",
+    "protocol-pre-aborted-signal-wrap",
     "quick-islands-occur",
     "reconnection-scheduler",
     "register-rawshape-compat",
     "remove-websocket-transport",
+    "resource-not-found-32602",
     "respect-capability-negotiation",
     "restore-task-wire-types",
     "rich-hounds-report",
     "schema-object-type-for-unions",
+    "sep-2106-dialect-posture",
+    "sep-2243-mcp-param-client",
+    "sep-2243-mcp-param-server",
+    "sep-2243-std-header-server",
+    "sep-2350-scope-step-up",
     "sep-2577-deprecate-runtime-apis",
+    "sep-2577-deprecate-type-stacks",
     "sep-2663-tasks-removal",
     "sep-414-trace-context-meta-keys",
+    "server-ctx-log-request-related",
+    "server-serve-stdio",
+    "server-streamablehttp-store-first",
     "shy-times-learn",
+    "spec-2907-error-code-renumber",
+    "spec-anchor-repin-2fb207da",
+    "spec-corpus-and-leak-net",
     "spec-reference-types-2026-07-28",
     "spec-type-schema",
+    "spec-types-2026-repin",
     "spotty-cats-tickle",
     "stdio-max-buffer-size",
     "stdio-skip-non-json",
     "stdio-subpath-export",
+    "subscriptions-listen-client",
+    "subscriptions-listen-result",
+    "subscriptions-listen-server",
     "support-standard-json-schema",
     "tame-camels-greet",
     "tender-snails-fold",
     "token-provider-composable-auth",
     "twelve-dodos-taste",
     "use-scopes-supported-in-dcr",
+    "wire-public-separation",
+    "wire-server-discover",
     "workerd-shim-vendors-cfworker",
     "wraphandler-hook",
     "zod-json-schema-compat",

packages/client/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@modelcontextprotocol/client",
-    "version": "2.0.0-alpha.3",
+    "version": "2.0.0-alpha.4",
     "description": "Model Context Protocol implementation for TypeScript - Client package",
     "license": "MIT",
     "author": "Anthropic, PBC (https://anthropic.com)",

packages/codemod/CHANGELOG.md

@@ -1,5 +1,13 @@
 # @modelcontextprotocol/codemod
 
+## 2.0.0-alpha.2
+
+### Patch Changes
+
+- [#2286](https://github.com/modelcontextprotocol/typescript-sdk/pull/2286) [`1823aae`](https://github.com/modelcontextprotocol/typescript-sdk/commit/1823aae891837ebb5e3db885ec635f9efefd5771) Thanks [@felixweinberger](https://github.com/felixweinberger)! - The v1→v2 codemod no longer rewrites `taskStore`/`taskMessageQueue` McpServer constructor options into `capabilities.tasks` — that target does not exist in v2 (the experimental tasks runtime was removed, SEP-2663). The codemod now leaves the code untouched and emits an action-required diagnostic telling migrators to remove the option, matching the removal guidance already given for `experimental/tasks` imports and the migration guide.
+
+- [#2286](https://github.com/modelcontextprotocol/typescript-sdk/pull/2286) [`1823aae`](https://github.com/modelcontextprotocol/typescript-sdk/commit/1823aae891837ebb5e3db885ec635f9efefd5771) Thanks [@felixweinberger](https://github.com/felixweinberger)! - v1-to-v2: now wraps `outputSchema` raw shapes with `z.object()`; importMap covers `sdk/server/express.js`, `sdk/server/middleware/hostHeaderValidation.js`, and `sdk/client/auth-extensions.js`. The unreachable `expressMiddleware` transform is removed.
+
 ## 2.0.0-alpha.1
 
 ### Minor Changes

packages/codemod/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@modelcontextprotocol/codemod",
-    "version": "2.0.0-alpha.1",
+    "version": "2.0.0-alpha.2",
     "description": "Codemod to migrate MCP TypeScript SDK code from v1 to v2",
     "license": "MIT",
     "author": "Anthropic, PBC (https://anthropic.com)",