🚀 AutoServerUpdaterX

Keep your server running on the latest security and performance patches without lifting a finger.

This project is a fork of the original AutoServerUpdater, specifically updated to maintain compatibility with modern server infrastructures and the latest API standards.

I recommend using AutoUpdatePlugins if you want your plugins to be updated automatically as well!

🔄 Why this fork?

The original plugin broke after PaperMC migrated their download service from Bibliothek (v2) to Fill (v3) and deprecated legacy endpoints. This fork resolves those connection issues and introduces more robust build-tracking logic.

✨ Key Features

• API v3 Support: Fully compatible with the new PaperMC Fill download service.
• Intelligent Build Tracking: Scans all available API metadata to identify the highest build ID, ensuring accuracy even for Alpha and Experimental releases.
• Configurable Update Actions: Choose between a Spigot-native RESTART or a clean STOP (perfect for Docker or Pterodactyl users).
• User-Agent Compliance: Implements mandatory identity headers to comply with PaperMC's latest infrastructure requirements.

📦 Supported Software

• Paper
• Purpur
• Leaf

🛠 Configuration

The plugin creates a config.yml on the first run. You can customize the behavior after a download:

# Options: 
# RESTART - Uses Spigot's restart command (default).
# STOP    - Safely shuts down the server. Recommended for loop scripts.
update-action: RESTART

⚠️ Disclaimer

[!DANGER] Using auto-updaters in production environments is at your own risk. This plugin overwrites your active server JAR. Always ensure you have regular backups configured before enabling automated updates.

Important regarding while true loops: If you are using a startup loop (e.g., while true; do java...; done), it is highly recommended to set update-action to STOP.

Using RESTART in combination with a shell loop often triggers a new server instance before the old one has fully terminated. This can lead to:

• Failed to bind to port errors (Port already in use).
• session.lock errors (World already in use).
• Zombie processes (Multiple instances running simultaneously).

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Note: If no restart script or loop is configured on your host, the server will shut down to apply the update but will not automatically start back up.

⚖️ License & Fork Information

• Divergence: This version contains a complete rewrite of the API fetching logic (switching to Fill v3), adds JSON parsing via Jackson, and implements mandatory User-Agent headers and configurable shutdown logic.
• Original License: The original project is licensed under the MIT License.