Yes. Modpack Update Checker is free to download from Modrinth. Its license is CC-BY-NC-ND-4.0.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

Modpack Update Checker — Minecraft Mods

About Modpack Update Checker

From Modrinth

An update checker designed for modpacks!

Modpack Update Checker is a Minecraft mod that allows players to check for updates to their modpack.

It supports both Fabric and Forge mod loaders, and is designed to be easy to configure and use.

The mod uses JSON files hosted on Github to store changelogs and version information, and can display this information in-game through a custom GUI.

The goal of this project is to provide an easy-to-use and customizable solution for modpack developers and players to stay up-to-date with the latest modpack versions and changelogs. By automating the update checking process, players can quickly and easily update their modpacks without having to manually check for updates or download files from external sources.

Modpack Update Checker currently supports the following Minecraft versions:

|Minecraft|Fabric|Forge|NeoForge|Quilt| |----------|------|------|---|----| |1.16.5|⚰️|⚰️|❌|❌| |1.18.2|⚰️|⚰️|❌|❌| |1.19.2|✅|✅|❌|⚰️| |1.19.3|⚰️|❌|❌|❌| |1.19.4|✅|❌|❌|⚰️| |1.20|⚰️|❌|❌|❌| |1.20.1|✅|✅|❌|⚰️| |1.20.2|✅|✅|✅|⚰️| |1.20.3|⚰️|⚰️|⚰️|❌| |1.20.4|✅|✅|✅|❌| |1.20.5|✅|❌|✅|❌| |1.20.6|✅|❌|✅|❌| |1.21|⚰️|❌|⚰️|❌| |1.21.1|✅|❌|✅|❌| |1.21.2|❌|❌|❌|❌| |1.21.3|✅|❌|✅|❌| |1.21.4|✅|❌|✅|❌| |1.21.5|✅|❌|✅|❌| |1.21.6|✅|❌|✅|❌|

For non-1.19.4 versions of Quilt, the Fabric version may be used instead.

How to configure:

Check out the wiki!

Discord: https://discord.gg/s2AtrCEKCn

Dependencies

Requires Fabric API on Fabric. Requires QFAPI/QSL on Quilt.

Highlights

From source data

Game versions

Supports 19 Minecraft versions, the newest being 1.21.6.

Loaders

Runs on Fabric, Forge, NeoForge and Quilt.

Footprint

Rated a light load on a server.

Modpack Update Checker on Nxeon

From our catalogue

One-click install: Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side: Optional on the server
Server type needed: Fabric, Forge, NeoForge, Quilt
Server load: light
Smallest plan we suggest: Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build: 0.15.6 (beta), released 2025-06-22

Game versions by loader

Loader	Game versions	Newest
Fabric	1.21.4 to 1.21.6 (3 versions)	1.21.6
NeoForge	1.21.4 to 1.21.5 (2 versions)	1.21.5

From 5 recorded builds of Modpack Update Checker.

Recent builds

Build	Released	Game versions	Loaders
0.15.6 beta	2025-06-22	1.21.6	Fabric
0.15.6 beta	2025-06-22	1.21.5	Fabric
0.15.6 beta	2025-06-22	1.21.4	NeoForge
0.15.6 beta	2025-06-22	1.21.5	NeoForge
0.15.6 beta	2025-06-22	1.21.4	Fabric

Run Modpack Update Checker on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog

Listed on Modrinth as “Mods”

Gameplay & overhauls

New mechanics, content and overhauls that change how the game plays.

Works on a server

From source side support

Modrinth lists server-side support for Modpack Update Checker as optional: it can run on a server, but isn’t required there.

Compatibility

Game: Minecraft
Loaders: FabricForgeNeoForgeQuilt
Runs on: Serveroptional on the server
Game versions: 1.21.6 and 18 earlier

Verified at the source

✓ModrinthOfficial listing, checked 2026-10-01Open ↗
✓Authoromo50, as published on Modrinth
✓LicenseCC-BY-NC-ND-4.0Free

Modpack Update Checker

Gallery