To update your GOBOY VPN客户端 which I assume refers to a VPN client from GOBOY)follow these steps:

1. Visit the Official Website: Go to the official GOBOY VPN website. For example, if you're using a specific version, you might visit GOBOY's official VPN site.

2. Check for Updates: Look for the latest version of your VPN client on the website. This is usually available under the "Updates" or "Download" section.

3. Download the Latest Version: Once you have access to the latest version, download it to your device. Make sure to download the secure version to protect your privacy.

4. Log In: After downloading, log in to your GOBOY VPN client using your credentials.

5. Update the VPN Client: If the official site provides an update button or instructions, follow those to update your VPN client. If not, you may need to manually download the latest version again from the website.

6. Restart Your Device: After updating, restart your computer or device to ensure the new VPN client is fully functional.

If you encounter any issues during the update process, refer to the official documentation or contact GOBOY support for assistance.