Simple Update Checker
by Patbox
Simple Update Checker tells a modpack's players and server operators when a newer version of their modpack is available on Modrinth.
What it does
On clients the mod shows update information on the main screen, to the right of the modpack name and version text, and refreshes it about every hour after the game starts. On servers it writes the update status to the log after startup and shows it to operators when they join. Until an update is found, the server checks every 12 hours. Once an update is reported, the wait before the next reminder doubles each time, stopping at a ceiling of 14 days.
The check can be run by hand with the /simpleupdatechecker check command, which is limited to one refresh every 15 minutes. All automatic checks can be turned off in the simpleupdatechecker user.json config file or through the /simpleupdatechecker settings command. The mod works on Fabric and Quilt, and it is open source under the GNU Lesser General Public License v3.0 only.
Key features
Main screen notice
Update information appears on the client's main screen beside the modpack name and version text.
Log and operator messages
Servers write the update status to the log after startup and show it to operators as they join.
Backoff schedule
Repeated reminders stretch from a 12-hour interval up to a 14-day ceiling, doubling after each message, so players are not flooded with notices.
Manual check command
The /simpleupdatechecker check command runs a check on demand, with a 15-minute limit between refreshes.
Gallery
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x10 of 10 versions with builds
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Modpack distribution
Pack authors can let players see when a new release is out without requiring them to open a launcher or browser.
Hosted servers
Server owners get an update reminder in the log and to their operators on join, without adding a separate tool.
Who it’s for: Modpack players and server operators who run a Modrinth modpack on Fabric or Quilt and want a visible notice when a newer pack version exists.
How it compares
Simple Modpack Update Checker is a Fabric mod for 1.21 – 26.3, client-side only and open source under the MIT License. PackPing is for Fabric and NeoForge across 1.21 – 26.2, client-side only and open source under the MIT License. Modpack Update Checker covers Fabric, Forge, NeoForge and Quilt for 1.16.5 – 1.21.6, is optional on either side, and is not open source; it uses the Creative Commons Attribution Non Commercial No Derivatives 4.0 license.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Simple Update Checker | Fabric and Quilt | 1.21.1 – 26.3 | Client or server, optional | 2026-09-11 |
| Simple Modpack Update Checker | Fabric | 1.21 – 26.3 | Client-side only | 2026-09-03 |
| PackPing | Fabric and NeoForge | 1.21 – 26.2 | Client-side only | 2026-06-18 |
| Modpack Update Checker | Fabric, Forge, NeoForge and Quilt | 1.16.5 – 1.21.6 | Client or server, optional | 2025-06-22 |
Questions
Does Simple Update Checker have to be installed on the server?
Which loaders does Simple Update Checker support?
How can the update check be stopped?
In the catalog
Simple Update Checker is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Patbox
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What the author says
The update information is displayed in logs on server/client boot and then in other places depending on where it runs. For clients, it displays update info on main screen (on right side from modpack name/version text), refreshing every hour after the game starts. For servers, it displays it in logs after server…
Official listing
- Modrinth page
- modrinth.com/mod/simple-update-checker
- Owner
- Patbox
- Published
- 2024-09-27
- Updated on Modrinth
- 2026-09-11
- Facts verified
- 2026-10-15
