Use Arix Versions to install Vanilla, Paper, Purpur, Fabric, Forge, NeoForge, proxies, and hybrid software.
Understand the available software
Open Minecraft → Versions to browse supported implementations. Vanilla is the official server; Paper, Purpur, and Spigot support Bukkit plugins; Fabric, Forge, and NeoForge support their respective mods; Velocity, Waterfall, and BungeeCord are proxies; Mohist and Arclight are hybrid implementations with additional compatibility tradeoffs.
Prepare for a version change
Changing software or downgrading a world can make existing data incompatible. Download a backup first and read the target software documentation. Never open a newer world in an older Minecraft release unless you are prepared to restore it.
Install and verify
- Stop the server and create a locked backup.
- Open Versions and select Browse beside the intended software.
- Choose the exact Minecraft/software build and confirm installation.
- Review Startup for the correct Java image or launch parameters.
- Start the server and watch Console through a complete boot.
- Verify plugins or mods and join before deleting the backup.
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