chore: bump version to 0.4.3 and add release notes

RELEASE_NOTES.md

@@ -0,0 +1,36 @@
+# Release Notes
+
+## v0.4.3 (2024-12-17)
+
+### New Features
+
+- **MCP Server (Preview)**: Added Model Context Protocol server that enables AI agents like Claude Desktop, Cursor, and VS Code to generate and edit draw.io diagrams with real-time browser preview.
+
+  ```json
+  {
+    "mcpServers": {
+      "drawio": {
+        "command": "npx",
+        "args": ["@next-ai-drawio/mcp-server@latest"]
+      }
+    }
+  }
+  ```
+
+  Available tools:
+  - `start_session` - Opens browser with real-time diagram preview
+  - `display_diagram` - Create a new diagram from XML
+  - `edit_diagram` - Edit diagram by ID-based operations (update/add/delete cells)
+  - `get_diagram` - Get the current diagram XML
+  - `export_diagram` - Save diagram to a `.drawio` file
+
+### Technical Changes
+
+- Added `packages/mcp-server/` as a separate npm package (`@next-ai-drawio/mcp-server`)
+- Updated `tsconfig.json` to exclude `packages/` from Next.js build
+- Updated `.gitignore` for monorepo structure (`packages/*/node_modules`, `packages/*/dist`)
+
+### Documentation
+
+- Added MCP Server section to all README files (English, Chinese, Japanese)
+- Added detailed MCP server documentation in `packages/mcp-server/README.md`

package.json

@@ -1,6 +1,6 @@
 {
     "name": "next-ai-draw-io",
-    "version": "0.4.2",
+    "version": "0.4.3",
     "license": "Apache-2.0",
     "private": true,
     "scripts": {