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[CTL] Calm The LeaksMinecraft mod for 1.21.1

This mod extends atl outputs, recognises leak trends, and then recommends fixes based of confidence levels after leveraging spark data. CTL doesn't hide real problems - it filters startup noise and false positives so you can focus on real leaks.

newest supported release 1.21.1Utility QolServer UtilityBug FixesPerformance
Latest version
calmtheleaks-1.2.5+1.21.1-neoforge
Loaders
NeoForge, Forge
Licence
not stated
Downloads
456.9k
Updated
2 mo ago
Available on
CurseForge

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version [CTL] Calm The Leaks declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023

Download

From [CTL] Calm The Leaks’s own host. Nothing is re-hosted here.

Browse 26 indexed releases

Most recently published release

calmtheleaks-1.2.5+1.21.1-neoforgerelease15 Sept 2026

calmtheleaks-1.2.5+1.21.1-neoforge.jar · 0.2 MB · for 1.21.1 · NeoForge

Download this release
3875663b1296…
Older versions24
  • calmtheleaks-1.2.5+1.20.1-forge15 Sept 20261.20.10.2 MB5b0f2d3cfaa2…Get
  • calmtheleaks-1.2.4+1.21.1-neoforge19 Aug 20261.21.10.2 MBe71fba839b76…Get
  • calmtheleaks-1.2.4+1.20.1-forge19 Aug 20261.20.10.2 MB641f1f951f6d…Get
  • calmtheleaks-1.2.3+1.20.1-forge10 Aug 20261.20.10.1 MB5153056822b2…Get
  • calmtheleaks-1.2.3+1.21.1-neoforge10 Aug 20261.21.10.1 MBbdba40351992…Get
  • calmtheleaks-1.2.2+1.21.1-neoforge22 Jul 20261.21.10.1 MB69f97ba05c93…Get
  • calmtheleaks-1.2.2+1.21.1-neoforge.jar22 Jul 20261.21.10.1 MB111 downloads69f97ba05c93…Get
  • calmtheleaks-1.2.2+1.20.1-forge22 Jul 20261.20.10.1 MB808ecc3f1075…Get
  • calmtheleaks-1.2.2+1.20.1-forge.jar22 Jul 20261.20.10.1 MB808ecc3f1075…Get
  • calmtheleaks-1.2.1-forge7 May 20261.20.10.1 MB0f840a4696aa…Get
  • calmtheleaks-1.2.1-forge.jar7 May 20261.20.10.1 MB14.9k downloads0f840a4696aa…Get
  • calmtheleaks-1.2.1-neoforge7 May 20261.21.10.1 MBd9056c202a2f…Get
  • calmtheleaks-1.2.1-neoforge.jar7 May 20261.21.10.1 MBd9056c202a2f…Get
  • calmtheleaks-1.2 Hotfix-neoforge7 Apr 20261.21.10.1 MB9842ae6b8fae…Get
  • calmtheleaks-1.2 Hotfix-neoforge.jar7 Apr 20261.21.10.1 MB225 downloads9842ae6b8fae…Get
  • calmtheleaks-1.2 Hotfix-forge5 Apr 20261.20.10.1 MBdbe083ab7ccd…Get
  • calmtheleaks-1.2 Hotfix-forge.jar5 Apr 20261.20.10.1 MB6 downloadsdbe083ab7ccd…Get
  • calmtheleaks-1.2-neoforge4 Apr 20261.21.10.1 MBc9cc4bfa2064…Get
  • calmtheleaks-1.2-neoforge.jar4 Apr 20261.21.10.1 MB11 downloadsc9cc4bfa2064…Get
  • calmtheleaks-1.24 Apr 20261.20.10.1 MB768999229d93…Get
  • calmtheleaks-1.2.jar4 Apr 20261.20.10.1 MB59 downloads768999229d93…Get
  • calmtheleaks-1.1.02 Feb 20261.20.160 KBaf46e1c4b077…Get
  • calmtheleaks-1.1.0.jar2 Feb 20261.20.160 KB1.7k downloadsaf46e1c4b077…Get
  • calmtheleaks-1.031 Jan 20261.20.157 KB8699362e0e04…Get

Frequently asked

Does [CTL] Calm The Leaks work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version [CTL] Calm The Leaks declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does [CTL] Calm The Leaks support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does [CTL] Calm The Leaks support?

NeoForge, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for [CTL] Calm The Leaks?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install [CTL] Calm The Leaks?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download [CTL] Calm The Leaks safely?

Start with the author's page on CurseForge, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Details from CurseForge, where the author last updated it on 16 Sept 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .