Node.js v26.0.0 released!

[NewsBot]

Node.js v26.0.0 has been released.

We’re excited to announce the release of Node.js 26! Highlights include the Temporal API enabled by default,
updates to the V8 JavaScript engine to 14.6, Undici to 8.0, and several important deprecations and removals
as we continue to modernize the platform.

As a reminder, Node.js 26 will enter long-term support (LTS) in October, but until then, it will be the “Current” release for the next six months.
We encourage you to explore the new features and benefits offered by this latest release and evaluate their potential impact on your applications.

Notable Changes

Temporal API

The Temporal API is now enabled by default in Node.js 26. Temporal is a modern date/time API for JavaScript
that provides a more robust and feature-rich alternative to the legacy Date object.

Contributed by Richard Lau in #61806.

V8 14.6

The V8 engine is updated to version 14.6.202.33, which is part of Chromium 134.

This version also includes:

• Upsert (https://github.com/tc39/proposal-upsert): [Weak]Map.prototype.getOrInsert(), [Weak]Map.prototype.getOrInsertComputed()
• Iterator sequencing (https://github.com/tc39/proposal-iterator-sequencing): Iterator.concat()

Contributed by Michaël Zasso in #61898.

Undici 8

Undici has been updated to version 8.0.2, bringing new features and improvements to Node.js’s HTTP client implementation.

Deprecations and Removals

• [dff46c07c3] - (SEMVER-MAJOR) crypto: move DEP0182 to End-of-Life (Tobias Nießen) #61084
• [93c25815ee] - (SEMVER-MAJOR) http: move writeHeader to end-of-life (Sebastian Beltran) #60635

http.Server.prototype.writeHeader() is now fully removed. Use http.Server.prototype.writeHead()…

Link: Release 2026-05-05, Version 26.0.0 (Current), @RafaelGSS · nodejs/node · GitHub