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feat: zod v4 with backwards compatibility for v3.25+ (#1040)

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Devin Clark 2025-11-19 12:24:53 -08:00 • committed by GitHub
commit 418b7f9b85
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README.md
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@ -58,7 +58,7 @@ Let's create a simple MCP server that exposes a calculator tool and some data. S
import { McpServer, ResourceTemplate } from '@modelcontextprotocol/sdk/server/mcp.js';
import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
import express from 'express';
import { z } from 'zod';
import * as z from 'zod/v4';
// Create an MCP server
const server = new McpServer({
@ -477,7 +477,7 @@ MCP servers can request LLM completions from connected clients that support samp
import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
import express from 'express';
import { z } from 'zod';
import * as z from 'zod/v4';
const mcpServer = new McpServer({
name: 'tools-with-sample-server',
@ -561,7 +561,7 @@ For most use cases where session management isn't needed:
import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
import express from 'express';
import { z } from 'zod';
import * as z from 'zod/v4';
const app = express();
app.use(express.json());
@ -796,7 +796,7 @@ A simple server demonstrating resources, tools, and prompts:
```typescript
import { McpServer, ResourceTemplate } from '@modelcontextprotocol/sdk/server/mcp.js';
import { z } from 'zod';
import * as z from 'zod/v4';
const server = new McpServer({
name: 'echo-server',
@ -866,7 +866,7 @@ A more complex example showing database integration:
import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import sqlite3 from 'sqlite3';
import { promisify } from 'util';
import { z } from 'zod';
import * as z from 'zod/v4';
const server = new McpServer({
name: 'sqlite-explorer',
@ -961,7 +961,7 @@ If you want to offer an initial set of tools/prompts/resources, but later add ad
import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
import express from 'express';
import { z } from 'zod';
import * as z from 'zod/v4';
const server = new McpServer({
name: 'Dynamic Example',