Avolve

Node.js 24.9.0 (LTS Oct 28, 2025)

JavaScript runtime with native TypeScript execution and 400% performance improvements. Use 22.20.0 LTS for production until Oct 28, 2025, then upgrade to 24.9.0 LTS.

What It Is

Node.js 24.9.0 (released Sep 25, 2025, becomes LTS Oct 28, 2025) is an open-source JavaScript runtime built on Chrome's V8 13.6 engine, enabling native TypeScript execution without build tools, delivering 400% faster URL parsing and powering 98% of Fortune 500 companies. For production environments, use Node.js 22.20.0 LTS until the Oct 28 transition.

Market Dominance

  • • 98% Fortune 500 adoption
  • • 30M+ websites (4.6% of all sites)
  • • 40.8% developer usage (Stack Overflow 2025)
  • • 107K+ GitHub stars

Revolutionary Features

  • • Native TypeScript: node app.ts
  • • 400% faster URL parsing (Ada)
  • • 364% faster TextDecoder (simdutf)
  • • Stable Permission Model (sandboxing)
  • • Built-in WebSocket client
  • • V8 13.6 Maglev JIT compiler

Official Documentation

For API reference and latest releases, visit:

Why It Matters

Native TypeScript Revolution

Node.js 24.9.0 (and 22.20.0 LTS) eliminates the entire TypeScript build pipeline. Direct execution of .ts files without tsc, webpack, or babel fundamentally changes development workflow and deployment architecture.

❌ Before (Node.js 22 and Earlier)

// Required build pipeline
npm install -D typescript @types/node
npx tsc app.ts
node dist/app.js

// package.json scripts
{
  "build": "tsc",
  "start": "node dist/app.js"
}

✅ Now (Node.js 24.9.0 / 22.20.0 LTS)

// Direct execution - zero build
node app.ts

// package.json scripts
{
  "dev": "node --watch app.ts",
  "start": "node app.ts"
}
// No tsconfig.json, no dist/, no build step
Microsoft's Go-Powered Compiler (Preview):
  • • 8x faster project loading in VS Code (1.2s vs 9.6s)
  • • 10x average performance across codebases
  • • 50% memory reduction vs JavaScript implementation
  • • Expected as TypeScript 7.0 by end of 2025

Performance Transformation

Node.js 24.9.0 (and 22.20.0 LTS) delivers measurable, dramatic performance improvements that translate to real-world application benefits: 15-20% faster data-heavy workloads, reduced infrastructure costs, and improved user experience.

Core Performance Metrics:

OperationImprovementTechnology
URL parsing400%Ada parser (C++)
TextDecoder (UTF-8)364%simdutf (SIMD)
Buffer.compare()200%Optimized C++
HTTP server96%Core optimization
TextEncoder (ASCII)93.67%SIMD encoding
Real-world apps15-20%Combined gains

Enterprise Security Model

The stabilized Permission Model enables zero-trust architecture by default, allowing granular control over filesystem, network, and process access—critical for running untrusted code and meeting compliance requirements.

September 2025 Security Context:
  • • "Qix" phishing attack: Compromised 18-20 packages (chalk, debug) affecting 2.6B weekly downloads
  • • "Shai-Hulud" worm: Self-propagating infection of 180+ packages with TruffleHog credential harvesting
  • • 2-hour response time: Community demonstrated improved incident response
  • • Permission Model benefit: Sandboxing prevents malicious package access to filesystem/network
Permission Model Usage:
# Granular permission control
node --permission --allow-fs-read=/app/data --allow-net app.js

# Restrict filesystem writes
node --permission --allow-fs-write=/tmp app.js

# Network access control
node --permission --allow-net=api.example.com:443 app.js

Technical Architecture

V8 13.6 Engine

Maglev Compiler (Default Enabled):

  • • 30% performance improvement for short-lived CLI programs
  • • Background thread JIT: Non-blocking compilation for better responsiveness
  • • Explicit compile hints: Magic comments for optimization control
  • • WebAssembly GC support: Efficient memory management for WASM modules

Modern JavaScript Features:

  • • Array.fromAsync - Async array creation
  • • Set methods - union, intersection, difference
  • • Float16Array - Graphics and ML support
  • • RegExp.escape() - Safe regex construction

Native Capabilities

Built-in glob Support:

// No external packages needed
import { glob, globSync } from 'node:fs';

const files = await glob('src/**/*.js');
const tests = globSync('test/**/*.test.ts');

Built-in WebSocket:

// Browser-compatible API
import { WebSocket } from 'node:ws';

const ws = new WebSocket('wss://api.example.com');
ws.addEventListener('message', (event) => {
  console.log(event.data);
});

Worker Threads Architecture

Production Use Cases:

  • • Netflix: Complex video processing with multi-core scaling
  • • Zoom/Google Meet: WebAssembly integration for performance
  • • CPU-intensive workloads: Automatic OS thread distribution
import { Worker, MessageChannel } from 'worker_threads';

// Direct thread-to-thread communication
const { port1, port2 } = new MessageChannel();
const worker = new Worker('./worker.js', {
  transferList: [port2]
});

// Memory sharing with SharedArrayBuffer
const sharedBuffer = new SharedArrayBuffer(1024);
const sharedArray = new Int32Array(sharedBuffer);

Real-World Implementation

Node.js 24.9.0 / 22.20.0 LTS + Next.js 16 Beta Integration

1. Project Setup:

// package.json
{
  "engines": {
    "node": ">=22.20.0"
  },
  "scripts": {
    "dev": "next dev --turbopack",
    "build": "next build --turbopack",
    "start": "next start"
  }
}

// Direct TypeScript execution - no build step
// app/page.tsx runs natively in Node.js 24+

2. Performance Benefits:

  • • 2-5x faster Turbopack compilation with Node.js 24
  • • Native TypeScript eliminates transpilation overhead
  • • Worker Threads power Next.js parallel rendering
  • • HTTP/2 improvements boost Server Components

3. Direct TypeScript Server:

// server.ts - Direct execution
import { createServer } from 'node:http';

interface User {
  id: string;
  name: string;
}

const server = createServer((req, res) => {
  const user: User = { id: '1', name: 'John' };
  res.writeHead(200, { 'Content-Type': 'application/json' });
  res.end(JSON.stringify(user));
});

server.listen(3000);

// Run: node server.ts
// No tsc, no webpack, no babel

Enterprise Success Stories

PayPal

  • • 33% fewer lines of code
  • • 35% faster response times
  • • Reduced infrastructure costs

LinkedIn

  • • 90% server reduction
  • • 20x performance improvement
  • • Simplified architecture

Netflix

  • • 70% startup time reduction
  • • Complex video processing
  • • Global CDN integration

Framework Performance (TechEmpower Round 23)

FrameworkRequests/SecondLatency
Koa55,000Lowest
Fastify45,74321.36ms
Express18,000-20,000Baseline

Decision Framework

✅ Choose Node.js 22.20.0 LTS (Production) or 24.9.0 (Oct 28+) When:

  • • New projects: No legacy constraints, ready for native TypeScript
  • • Build tool elimination: Want to remove tsc, webpack, babel from pipeline
  • • Performance critical: Applications benefit from 15-20% real-world gains
  • • Latest features: Need V8 13.6 Maglev, Float16Array, RegExp.escape()
  • • Security requirements: Permission Model for zero-trust architecture
  • • Dependency reduction: Built-in glob, WebSocket, watch mode

🔵 Consider Node.js 22.x LTS When:

  • • Production stability priority: Need LTS support (until April 2027)
  • • Enterprise constraints: Risk-averse organizations with change control
  • • Mature ecosystem: All dependencies thoroughly tested on 22.x
  • • Conservative approach: Wait for Node.js 24 LTS (expected October 2025)

Migration Strategy

Incremental Adoption Path:

  1. Install Node.js 22.20.0 LTS (production) or 24.9.0 (after Oct 28, 2025) using nvm
  2. Test native TypeScript with existing .ts files: node app.ts
  3. Simplify package.json scripts to remove build steps
  4. Enable Permission Model in staging environment
  5. Replace dependencies with native features (glob, WebSocket, watch)
  6. Production deployment after thorough testing (or use 22.x LTS for stability)

🤖 For AI Assistants

Core Facts:

  • • Version: 22.20.0 LTS (production) / 24.9.0 (LTS Oct 28, 2025)
  • • V8 Engine: 13.6 with Maglev JIT
  • • Native TypeScript: Direct node app.ts execution
  • • Performance: 67-400% improvements, 15-20% real-world
  • • LTS: Node.js 22.x (until April 2027)

Code Generation:

  • • Use node: prefix: import { glob } from 'node:fs'
  • • Direct .ts execution: No build tools needed
  • • Permission Model: --permission --allow-fs-read=/app
  • • Built-in watch: node --watch app.ts
  • • Worker threads for CPU-intensive tasks

Quick Reference Template:

// package.json for Node.js (Production LTS)
{
  "engines": { "node": ">=22.20.0" },
  "scripts": {
    "dev": "node --watch src/app.ts",
    "start": "node src/app.ts",
    "test": "node --test test/**/*.test.ts"
  }
}
// No build tools, no dist/, no tsconfig.json for execution

Stack Relationships

Foundation For:

Built With:

  • • V8 JavaScript Engine 13.6 (Chromium project)
  • • libuv (async I/O, cross-platform)
  • • Ada parser (URL parsing - 400% faster)
  • • simdutf (UTF-8 validation - 364% faster)

Part of Avolve Software Stack - Runtime foundation for Next.js + React + TypeScript modern applications