ryoppippi · github-actions · Sep 30, 2026
diff --git a/.changeset/lazy-tool-schema-conversion.md b/.changeset/lazy-tool-schema-conversion.md
diff --git a/.changeset/node-hono-regular-dependency.md b/.changeset/node-hono-regular-dependency.md
diff --git a/packages/client/CHANGELOG.md b/packages/client/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @modelcontextprotocol/client
 
+## 2.2.1
+
+### Patch Changes
+
+- Updated dependencies []:
+    - @modelcontextprotocol/core@2.2.1
+
 ## 2.2.0
 
 ### Minor Changes

diff --git a/packages/client/package.json b/packages/client/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@modelcontextprotocol/client",
-    "version": "2.2.0",
+    "version": "2.2.1",
     "description": "Model Context Protocol implementation for TypeScript - Client package",
     "license": "MIT",
     "author": "Anthropic, PBC (https://anthropic.com)",

diff --git a/packages/codemod/CHANGELOG.md b/packages/codemod/CHANGELOG.md
@@ -1,5 +1,7 @@
 # @modelcontextprotocol/codemod
 
+## 2.2.1
+
 ## 2.2.0
 
 ### Patch Changes

diff --git a/packages/codemod/package.json b/packages/codemod/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@modelcontextprotocol/codemod",
-    "version": "2.2.0",
+    "version": "2.2.1",
     "description": "Codemod to migrate MCP TypeScript SDK code from v1 to v2",
     "license": "MIT",
     "author": "Anthropic, PBC (https://anthropic.com)",

diff --git a/packages/core-internal/CHANGELOG.md b/packages/core-internal/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @modelcontextprotocol/core-internal
 
+## 2.0.3
+
+### Patch Changes
+
+- Updated dependencies []:
+    - @modelcontextprotocol/core@2.2.1
+
 ## 2.0.2
 
 ### Patch Changes

diff --git a/packages/core-internal/package.json b/packages/core-internal/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@modelcontextprotocol/core-internal",
     "private": true,
-    "version": "2.0.2",
+    "version": "2.0.3",
     "description": "Model Context Protocol implementation for TypeScript - Core package",
     "license": "MIT",
     "author": "Anthropic, PBC (https://anthropic.com)",

diff --git a/packages/core/CHANGELOG.md b/packages/core/CHANGELOG.md
@@ -1,5 +1,7 @@
 # @modelcontextprotocol/core
 
+## 2.2.1
+
 ## 2.2.0
 
 ### Minor Changes

diff --git a/packages/core/package.json b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@modelcontextprotocol/core",
-    "version": "2.2.0",
+    "version": "2.2.1",
     "description": "Model Context Protocol for TypeScript — public Zod schemas (spec + OAuth/OpenID)",
     "license": "MIT",
     "author": "Anthropic, PBC (https://anthropic.com)",

diff --git a/packages/middleware/node/CHANGELOG.md b/packages/middleware/node/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @modelcontextprotocol/node
 
+## 2.1.1
+
+### Patch Changes
+
+- [#2897](https://github.com/modelcontextprotocol/typescript-sdk/pull/2897) [`7f4c12a`](https://github.com/modelcontextprotocol/typescript-sdk/commit/7f4c12a6ae6b8f22411f7772c88036e1c8055423) Thanks [@claude](https://github.com/apps/claude)! - `hono` is now a regular dependency of `@modelcontextprotocol/node`, so installs with strict peer-dependency checking no longer fail on the `hono` peer that `@hono/node-server` requires. No runtime change.
+
+- Updated dependencies [[`4d94e7b`](https://github.com/modelcontextprotocol/typescript-sdk/commit/4d94e7b1ccf769d94a7bbba7789f1ee6c7dfdd8c)]:
+    - @modelcontextprotocol/server@2.2.1
+
 ## 2.1.0
 
 ### Minor Changes

diff --git a/packages/middleware/node/package.json b/packages/middleware/node/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@modelcontextprotocol/node",
-    "version": "2.1.0",
+    "version": "2.1.1",
     "description": "Model Context Protocol implementation for TypeScript - Node.js middleware",
     "license": "MIT",
     "author": "Anthropic, PBC (https://anthropic.com)",

diff --git a/packages/server-legacy/CHANGELOG.md b/packages/server-legacy/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @modelcontextprotocol/server-legacy
 
+## 2.2.1
+
+### Patch Changes
+
+- Updated dependencies []:
+    - @modelcontextprotocol/core@2.2.1
+
 ## 2.2.0
 
 ### Patch Changes

diff --git a/packages/server-legacy/package.json b/packages/server-legacy/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@modelcontextprotocol/server-legacy",
     "private": false,
-    "version": "2.2.0",
+    "version": "2.2.1",
     "description": "Frozen v1 SSE transport and OAuth Authorization Server helpers for the Model Context Protocol TypeScript SDK. Deprecated; use StreamableHTTP and a dedicated OAuth server in production.",
     "deprecated": "This package is a frozen copy of v1's SSE transport and OAuth Authorization Server helpers for migration purposes only. Use StreamableHTTP from @modelcontextprotocol/server and a dedicated OAuth server in production. Will not receive new features.",
     "license": "MIT",

diff --git a/packages/server/CHANGELOG.md b/packages/server/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @modelcontextprotocol/server
 
+## 2.2.1
+
+### Patch Changes
+
+- [#2889](https://github.com/modelcontextprotocol/typescript-sdk/pull/2889) [`4d94e7b`](https://github.com/modelcontextprotocol/typescript-sdk/commit/4d94e7b1ccf769d94a7bbba7789f1ee6c7dfdd8c) Thanks [@claude](https://github.com/apps/claude)! - `registerTool` no longer converts tool schemas up front, so a server built per request stops converting every tool on every request. The warning about an invalid `x-mcp-header` declaration now appears each time tools are listed, not when the tool is registered.
+
+- Updated dependencies []:
+    - @modelcontextprotocol/core@2.2.1
+
 ## 2.2.0
 
 ### Patch Changes

diff --git a/packages/server/package.json b/packages/server/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@modelcontextprotocol/server",
-    "version": "2.2.0",
+    "version": "2.2.1",
     "description": "Model Context Protocol implementation for TypeScript - Server package",
     "license": "MIT",
     "author": "Anthropic, PBC (https://anthropic.com)",