---
title: V4.6.3 (Includes Migration Script)
description: FastGPT V4.6.3
---

## 1. Run the Initialization API

Send 1 HTTP request (replace `{{rootkey}}` with the `rootkey` from your environment variables, and `{{host}}` with your domain).

1. https://xxxxx/api/admin/initv463

```bash
curl --location --request POST 'https://{{host}}/api/admin/initv463' \
--header 'rootkey: {{rootkey}}' \
--header 'Content-Type: application/json'
```

What the initialization does:
1. Initializes certain fields in the Mongo dataset, collection, and data documents.

## V4.6.3 New Features

1. New (Commercial edition) - Web site sync.
2. New - Collection metadata tracking.
3. Improved - URL content fetching.
4. Improved - Streaming file reads to prevent memory overflow.
5. Improved - Vision models now automatically convert URLs to base64, enabling local debugging.
6. Improved - Image compression quality levels.
7. Fixed - Image compression failure errors that could cause file reading to hang.