Node.js v24.11.1 LTS Release: Critical Fixes and Core Enhancements

Node.js

Node.js v24.11.1 LTS introduces a critical fix for `Buffer.allocUnsafe` zero-filling, alongside numerous bug fixes, dependency updates, and documentation improvements across the core.

Node.js v24.11.1, codenamed 'Krypton', has been released as an LTS (Long Term Support) version, bringing essential bug fixes and a range of enhancements to the platform. This release focuses on stability and correctness, ensuring a more reliable environment for your applications.

Notable Changes

A significant issue regarding Buffer.allocUnsafe has been addressed. Previously, this function was incorrectly zero-filling buffers, deviating from its documented behavior of returning uninitialized memory. This fix ensures Buffer.allocUnsafe now correctly provides uninitialized memory as specified in its documentation, restoring expected functionality.

Key Updates

This release incorporates a wide array of updates spanning various modules and systems:

Core Bug Fixes & Stability: Important corrections have been made across http, http2, lib, src, and test modules, including fixes for HTTP client leaks, preventing crashes on mismatched HTTP/2 ping buffer lengths, and ensuring correct _errnoException stack traces.
Performance & Benchmarking: Improvements to CPU benchmarks and the addition of new benchmarks for leaf source text modules aim to enhance performance monitoring and optimization efforts.
Dependency Upgrades: Key dependencies have been updated for improved security and functionality. These include:
- corepack to 0.34.2
- simdjson to 4.0.7
- inspector_protocol
- googletest
- npm to 11.6.2
Documentation Enhancements: The documentation has received numerous updates for clarity and accuracy, covering deprecations, dns.resolveAny(), worker_threads.Worker error events, decorator policies, blob.bytes() headings, vm code examples, and general improvements to markdown formatting.
Build System & Tooling: The build process has seen updates such as ibmi visibility fixes, Python configure command usage, V8 build flag adjustments, and an upgrade of the Visual Studio workload from 2019 to 2022. Tools for inspector protocol management and gyp-next have also been updated.
API & Module Refinements: Enhancements include lazy allocation for HTTP cookies, network payload buffer size limits for the inspector, refactoring of async loader hooks, and robust handling of error objects in util. typings have been updated for Worker, HTTPParser, and ConfigBinding.
Testing Infrastructure: The testing suite has been improved with updates to debugger timeouts, test-runner helpers, perf-hooks calculations, parallelization, and platform-specific test skips for greater reliability and efficiency.

Downloads

You can find the installers and binaries for Node.js v24.11.1 (LTS) at the links below:

Windows 64-bit Installer: https://nodejs.org/dist/v24.11.1/node-v24.11.1-x64.msi
Windows ARM 64-bit Installer: https://nodejs.org/dist/v24.11.1/node-v24.11.1-arm64.msi
macOS 64-bit Installer: https://nodejs.org/dist/v24.11.1/node-v24.11.1.pkg
macOS Apple Silicon 64-bit Binary: https://nodejs.org/dist/v24.11.1/node-v24.11.1-darwin-arm64.tar.gz
Linux 64-bit Binary: https://nodejs.org/dist/v24.11.1/node-v24.11.1-linux-x64.tar.xz
Source Code: https://nodejs.org/dist/v24.11.1/node-v24.11.1.tar.gz

You can find other release files here: https://nodejs.org/dist/v24.11.1/

Documentation

Access the official documentation for Node.js v24.11.1: https://nodejs.org/docs/v24.11.1/api/

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