ModsJava
Version Blocker
A Velocity plugin to allow only a single game version. Display a custom message if the version is incorrect. Free Minecraft Java mod for 1.21.7, 1.21.8…
⬇ Download on ModrinthVersion Blocker – Keep Your Server Safe from Wrong Game Versions
Description:
- Version Blocker is a Velocity proxy plugin that ensures only players with the allowed Minecraft version can connect to your servers. It checks each player's game version and:
- Blocks unsupported versions from accessing your Paper servers.
- Displays a custom message when a player’s version is incorrect.
- Ensures a smooth experience by preventing incompatible clients from joining.
Key Features:
- Enforce a single allowed game version.
- Customizable rejection message.
- Simple configuration and setup.
List of MC protocol : https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge/Protocol_History
This is a very lightweight and simplistic plugin. No support or feature requests are available.
Verified by MCModsHub
- Ships as versionblocker-1.0.0.jar — drop this file into the mods folder
- Download size: 5 KB
- Download link checked 20 Aug 2026 — working
These come from our own check of the pack file, not from the source page.