# Node.js 26 LTS is now Generally Available on Vercel By Steven Van · 2026-10-29 Projects whose engines.node range already allows 26, such as >=20, move to it on their next deployment, and HTTP/2 fetch can be switched off. Node.js 26 LTS is now generally available for builds and Vercel Functions on [Vercel](), and it is the default runtime for all new projects. The change was [announced in the Vercel changelog](). ## What the release includes - **HTTP/2 by default for built-in fetch** (Undici 8). Multiple requests can share a connection with servers that support it, which can reduce latency when functions call APIs or databases over HTTP. - **Temporal API**, an alternative to Date with immutable values and built-in time zone and calendar support. - **V8 14.6**, the updated JavaScript engine. It adds features such as Map.prototype.getOrInsert(), which retrieves an existing value or inserts a default when a key is missing. ## Moving existing projects to Node.js 26 - **Automatic upgrades:** if engines.node in a project's package.json allows 26 (for example >=20), Node.js builds on Vercel use 26 on the next deployment. - **Manual upgrades:** set engines.node to 26.x in package.json and redeploy. - **Prebuilt deployments:** use Vercel CLI 65.8.0 or later to deploy Node.js 26 Functions. - **Keeping HTTP/1.1:** set the VERCEL\_FETCH\_DISABLE\_H2 environment variable to 1 and redeploy. Minor and patch updates to Node.js 26 roll out automatically for builds and Vercel Functions. ![Vercel]() Vercel The platform for frontend developers — deploy, preview, and scale web apps and AI agents with zero config. [View Vercel →]() Sources [Original source]() [Read Node.js 26 LTS is now Generally Available on Vercel on Creators Toolbox]() --- Canonical source: https://creatorstoolbox.com/blog/vercel-node-js-26-lts-is-now-generally-available-on-vercel