Meta Releases Docusaurus 3.9 with New AI Search Feature

Meta Releases Docusaurus 3.9 with New AI Search Feature
# Docusaurus 3.9 Release — AI Search, Runtime Upgrades, and i18n Enhancements

**Date:** 2025-11-03 13:31 Beijing  

Docusaurus is a **React-based static site generator** maintained by Meta’s open-source team. The **3.9 release** brings major runtimes, search, and localization improvements — all while maintaining backward compatibility.

![image](https://blog.aitoearn.ai/content/images/2025/11/img_001-75.jpg)  
![image](https://blog.aitoearn.ai/content/images/2025/11/img_002-71.jpg)  

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## Overview of the 3.9 Update

Docusaurus v3.9 focuses on:

- **Modernizing the runtime environment**
- **Enhancing search capabilities** through **Algolia DocSearch v4 AI**
- **Improving i18n flexibility**
- Keeping upgrades **smooth and backward-compatible**

---

## Key New Features

### 1. AI-Powered Search with Algolia DocSearch v4
- **Full support for DocSearch v4** with **Ask AI**, enabling conversational querying within docs.
- The AI assistant is trained on your site’s indexed pages.
- Existing projects may:
  - Continue with DocSearch v3
  - Gradually upgrade to v4 for AI assistant features

**Upgrade command:**

npm update @docsearch/react


> **Note:** Ensure your Algolia crawler is updated and credentials are set in `themeConfig.algolia`.

---

### 2. Runtime Modernization
- **Minimum Node.js requirement:** **v20.0.0**  
  - **Node.js 18 support dropped** (EOL reached)  
  - May require CI/CD or container updates

While Meta doesn’t classify this as a breaking change, some developers disagree.

---

### 3. Enhanced i18n Configuration
- **New field:** `i18n.localeConfigs[locale]`  
  - Allows overriding `baseUrl` and `url` **per locale**
  - Ideal for **multi-domain** or **deeply localized** deployments
- **New translation flag** (default: `false`) to skip translation steps and speed up builds for non-translated sites
- **New `key` property** in sidebars for explicitly assigning unique keys to entries
- Translation fixes for **Brazilian Portuguese** and **Ukrainian**

---

### 4. Other Improvements
- **Mermaid ELK** layout support for richer diagram rendering
- **Rspack 1.5** upgrade for faster builds

---

## Migration Notes (3.8 → 3.9)
The migration is **minimal**:
1. **Check Node.js version** (must be v20+).
2. **Review search config** if upgrading to DocSearch v4 with Ask AI.
3. **Update dependencies** — no API-breaking changes.

For full details, see the [official changelog](https://www.infoq.com/news/2025/10/docusaurus-3-9-ai-search/).

---

## About Docusaurus
An open-source framework for **content-driven documentation sites**:
- Built with **React**
- Used by large-scale open-source & enterprise projects
- Created and maintained by Meta

---

## AI-Powered Publishing Ecosystems

In the fast-moving documentation & publishing space, **AI workflow integration** is key.

**[AiToEarn](https://aitoearn.ai/)** is an **open-source, global AI content monetization ecosystem** that allows creators to:
- Publish simultaneously to **Douyin, Kwai, WeChat, Bilibili, Xiaohongshu, Facebook, Instagram, LinkedIn, Threads, YouTube, Pinterest, and X (Twitter)**
- Integrate **AI generation, cross-platform publishing, analytics, and [AI model ranking](https://rank.aitoearn.ai)** to maximize monetization

This can supercharge lifecycle management for **technical documentation** and **multi-platform content strategies**.

---

### Related Technology & AI Industry Reads
- [Rewrite the AI Landscape? Nadella and Altman Rarely Seen Together; Is DNS to Blame Again? Microsoft’s Global Service Outage; 100,000 Watch a Forged Livestream! AI Version of Jensen Huang 5x More Popular Than the Real One | Q News](https://mp.weixin.qq.com/s?__biz=MjM5MDE0Mjc4MA==&mid=2651261318&idx=1&sn=f5e581f7fc48afac189b50e6f0ebfb93&scene=21#wechat_redirect)

- [The Once Million-Yuan-Per-Year Architects — Now Relying on AI to Keep Their Jobs? Conversation with 5 Top Architects: Future Architects Must Understand AI Even Without Writing Code](https://mp.weixin.qq.com/s?__biz=MjM5MDE0Mjc4MA==&mid=2651261277&idx=1&sn=c6da3cd7b43a8e8948c673248f3cd070&scene=21#wechat_redirect)

- [Nano Banana Skyrockets Google’s Revenue to a Record High, Sundar Pichai Overjoyed! Behind-the-Scenes Team Reveals Internal “Absolute Priority List”](https://mp.weixin.qq.com/s?__biz=MjM5MDE0Mjc4MA==&mid=2651261231&idx=1&sn=00302353c611ab4d7a587e396915bc42&scene=21#wechat_redirect)

- [a16z Values 30 Million Developers at $3 Trillion — Equal to France’s GDP! Netizens: A Few Startups + Large Models Want to Replace Us, Are You Crazy?](https://mp.weixin.qq.com/s?__biz=MjM5MDE0Mjc4MA==&mid=2651260830&idx=1&sn=3ba086e30e81dee4e8fbe1fbe849c059&scene=21#wechat_redirect)

---

![image](https://blog.aitoearn.ai/content/images/2025/11/img_003-64.jpg)

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## Final Thoughts
The convergence of **tech innovation**, **AI capabilities**, and **content monetization** is reshaping how developers and creators work.  
Platforms like **[AiToEarn官网](https://aitoearn.ai/)** bridge the gap — enabling AI-assisted creation, **multi-platform publishing**, and **global monetization strategies**.

For anyone in **documentation** or **content creation**, pairing tools like **Docusaurus 3.9** with such ecosystems could be a high-leverage move.

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