Supported Node.js Versions

Warning: Support for Node.js version 18 is discontinued for Launch as of August 1, 2025. Update to a supported Node.js version to avoid disruptions in your projects.

The following are the available Node.js versions on Launch:

• 22.x (default)
• 20.x
• 18.x (discontinued as of August 1, 2025)

Setting the Node.js Version in the package.json File

You can specify the major Node.js version in the engines#node section of the package.json file.

Example:

package.json

{
  "engines": {
    "node": "20.x"
  }
}

When a valid semver range for Node.js 20 (e.g. 20.x) is specified in the package.json, the project will be deployed with the latest available 20.x version of Node.js.

Note: If the engines#node section is not specified in package.json, the default Node.js version (Node.js 22.x) will be used.

Example Version Ranges and their Deployed Node.js Versions: