Align Node.js version prerequisites with CLI reference (v22+)

 (#5118)

Co-authored-by: fern-api[bot] <115122769+fern-api[bot]@users.noreply.github.com>

Author: fern-api[bot]

.github/scripts/system-prompt.md

@@ -39,7 +39,7 @@ Follow these key principles from Fern's contribution guide:
 - Include error handling examples
 
 #### Tutorial Content
-- Begin with prerequisites and setup requirements (following Fern's pattern: Node.js 16+, npm, Fern CLI)
+- Begin with prerequisites and setup requirements (following Fern's pattern: Node.js 22+, npm, Fern CLI)
 - Break complex processes into logical steps
 - Include verification steps to confirm success
 - Provide troubleshooting for common issues
@@ -102,7 +102,7 @@ Before finalizing content, ensure:
 
 Remember that Fern documentation:
 - Is built using the Fern CLI (`fern docs dev` for local development)
-- Requires Node.js 16+ and npm
+- Requires Node.js 22+ and npm
 - Uses Fern's documentation component system
 - Follows a specific file structure and organization
 - Is currently live at buildwithfern.com/learn

README.md

@@ -7,8 +7,8 @@ Welcome to the Fern documentation! This repository contains the source code for
 ### Prerequisites
 
 Before you begin, make sure you have the following installed:
-- [Node.js](https://nodejs.org/) (version 16 or higher)
-- [npm](https://www.npmjs.com/) (comes with Node.js)
+- [Node.js](https://nodejs.org/) (version 22 or higher)
+- [npm](https://www.npmjs.com/) version 10.0.0 or higher (comes with Node.js 22)
 
 ### Installation
 

fern/products/docs/pages/developer-tools/gitlab.mdx

@@ -7,7 +7,7 @@ description: Set up GitLab CI/CD to automatically publish your Fern docs when ch
 Use GitLab CI/CD to automatically generate preview links on merge requests, publish your Fern docs when changes are merged to `main`, and delete preview links after merge.
 
 <Info title="Prerequisites">
-- Node.js version 18 or higher
+- Node.js version 22 or higher
 - [The Fern CLI](/learn/cli-api-reference/cli-reference/overview#install-fern-cli) installed locally
 - A Fern project with a `fern` folder ([quickstart](/learn/docs/getting-started/quickstart))
 </Info>

fern/products/docs/pages/preview-publish/preview-changes-locally.mdx

@@ -11,7 +11,7 @@ Fern offers two ways to preview documentation changes:
 
 <Info title="Prerequisites">
 Install the following:
-- Node.js version 18 or higher
+- Node.js version 22 or higher
 - [The Fern CLI](/learn/cli-api-reference/cli-reference/overview#install-fern-cli)
 </Info>